APA (7th ed.) Citation

Rosen, G., & Kelly, N. (1981). Focus on life: A senior biology course. McGraw-Hill.

Chicago Style (17th ed.) Citation

Rosen, Gaye, and Nan Kelly. Focus on Life: A Senior Biology Course. Sydney: McGraw-Hill, 1981.

MLA (9th ed.) Citation

Rosen, Gaye, and Nan Kelly. Focus on Life: A Senior Biology Course. McGraw-Hill, 1981.

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