In the interest of preserving the readability of the CLIL post, I have chosen not to use the conventions of academic citation when summarising the findings of empirical studies on CLIL and related approaches. Interested readers can refer to the following publications:

• Brinton, D., Snow, M. A., & Wesche, M. B. (2003). Content-based second language instruction (Michigan classics ed.). Ann Arbor, IL: University of Michigan Press.
• Crandall, J., & Tucker, G. R. (1989). Content-based instruction in second and foreign languages. Paper presented at the Regional Seminar for Language and Teaching Methodology for the Nineties, Singapore. http://eric.ed.gov/PDFS/ED312895.pdf
• Dalton-Puffer, C. (2008). Outcomes and processes in Content and Language Integrated Learning (CLIL): current research from Europe. In W. Delanoy & L. Volkmann (Eds.), Future perspectives in English Language Teaching (pp. 139-157). Heidelberg: Carl Winter.
• Dalton-Puffer, C. (2011). Content-and-Language Integrated Learning: From Practice to Principles. Annual Review of Applied Linguistics, 31, 182-204.
• Davies, S. (2003). Content based instruction in EFL contexts. The internet TESL Journal, IX(2).
• Duenas, M. (2004). The whats, whys, hows and whos of content-based instruction in second/foreign language education. International journal of English Studies, 4(1), 73-96.
• Gaffield-Vile, N. (1996). Content-based second language instruction at the tertiary level. ELT Journal, 50(2), 108-114. doi: 10.1093/elt/50.2.108
• Grabe, W., & Stoller, F. L. (1997). Content-based instruction: Research foundations. In M. A. Snow & D. M. Brinton (Eds.), The content-based classroom: Perspectives on integrating language and content (pp. 5-21). New York: Longman.
• Hajer, M. (2000). Creating a language-promoting classroom: content-area teachers at work. In J. K. S. V. Hall, Lorrie (Ed.), Second and foreign language learning through classroom interaction (Vol. 265-285). Mahwah, NJ: Lawrence Erlbaum Associates.
• Leaver, B. L., & Stryker, S. B. (1989). Content-based instruction for foreign language classrooms. Foreign Language Annals, 22(3), 269-275.
• Marrioti, C. (2006). Negotiated interactions and repair patterns in CLIL settings. VIEWS, 13(Special CLIL Issue), 33-40.
• Pica, T. (2002). Subject-matter content: How does it assist the interactional and linguistic needs of classroom language learners? The Modern Language Journal, 86(1), 1-19. doi: 10.1111/1540-4781.00133
• Smala, S. (2011). Content and language integrated learning. Languages Victoria, 15(2), 32-35.
• Stoller, F. L. (2002). Project work : a means to promote language and content. In J. C. Richards & W. A. Renandya (Eds.), Methodology in language teaching: An anthology of current practice (pp. 107-119). Cambridge: Cambridge University Press.

About this post: This list was orginally compiled in 2012, so it’s quite out of date by now. I will get round to updating it at some point. In the meanwhile, any suggestions about sources that should be included are very welcome – feel free to drop me a line!