APA-viite (7. p.)

Greenall, S., & Delestrée, A. (1998). Reward: Elementary. Grammar and Vocabulary. Macmillan Heinemann.

Chicago-viite (17. p.)

Greenall, Simon, ja Anne Delestrée. Reward: Elementary. Grammar and Vocabulary. Oxford: Macmillan Heinemann, 1998.

MLA-viite (9. p.)

Greenall, Simon, ja Anne Delestrée. Reward: Elementary. Grammar and Vocabulary. Macmillan Heinemann, 1998.