Cita APA (7a ed.)

Willis, J. (1998). A framework for task-based learning. Longman.

Cita Chicago Style (17a ed.)

Willis, Jane. A Framework for Task-based Learning. Harlow: Longman, 1998.

Cita MLA (9a ed.)

Willis, Jane. A Framework for Task-based Learning. Longman, 1998.