APA (7th ed.) Citation

Peter Riley. (2005). Checkpoint Biology Pupil's Book (Checkpoint Science). "Trans-Atlantic Publications, Inc.".

Chicago Style (17th ed.) Citation

Peter Riley. Checkpoint Biology Pupil's Book (Checkpoint Science). "Trans-Atlantic Publications, Inc.", 2005.

MLA (9th ed.) Citation

Peter Riley. Checkpoint Biology Pupil's Book (Checkpoint Science). "Trans-Atlantic Publications, Inc.", 2005.

Warning: These citations may not always be 100% accurate.