APA (7th ed.) Citation

Walker Sally M. (2008). Early Bird Physics Screws. Lerner.

Chicago Style (17th ed.) Citation

Walker Sally M. Early Bird Physics Screws. UK: Lerner, 2008.

MLA (9th ed.) Citation

Walker Sally M. Early Bird Physics Screws. Lerner, 2008.

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