Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (8th εκδ.)

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