APA (7e ed.) Bronvermelding

Leaver, B. L., & Willis, J. R. (2004). Task-based instruction in foreign language education: Practices and programs. Georgetown University Press.

Chicago (17e ed.) Bronvermelding

Leaver, Betty Lou, en Jane R. Willis. Task-based Instruction in Foreign Language Education: Practices and Programs. Washington, D.C.: Georgetown University Press, 2004.

MLA (8e ed.) Bronvermelding

Leaver, Betty Lou, en Jane R. Willis. Task-based Instruction in Foreign Language Education: Practices and Programs. Georgetown University Press, 2004.