APA (7e ed.) Bronvermelding

American Council on the Teaching of Foreign Languages, Hadley, A. O., & Johnson, D. M. (1993). Research in language learning: Principles, processes, and prospects. National Textbook Co. in conjunction with the American Council on the Teaching of Foreign Languages.

Chicago (17e ed.) Bronvermelding

American Council on the Teaching of Foreign Languages, Alice Omaggio Hadley, en Donna M. Johnson. Research in Language Learning: Principles, Processes, and Prospects. Lincolnwood, Ill: National Textbook Co. in conjunction with the American Council on the Teaching of Foreign Languages, 1993.

MLA (9e ed.) Bronvermelding

American Council on the Teaching of Foreign Languages, et al. Research in Language Learning: Principles, Processes, and Prospects. National Textbook Co. in conjunction with the American Council on the Teaching of Foreign Languages, 1993.