APA (7th ed.) Citation

Willis, J. (1996). A framework for task-based learning (1. publ.). Longman.

Chicago Style (17th ed.) Citation

Willis, Jane. A Framework for Task-based Learning. 1. publ. Harlow: Longman, 1996.

MLA (9th ed.) Citation

Willis, Jane. A Framework for Task-based Learning. 1. publ. Longman, 1996.