APA (7th ed.) Citation

Toole ,Glenn, & Toole ,Susan. Understanding biology for advanced level (4th ed.).

Chicago Style (17th ed.) Citation

Toole ,Glenn, and Toole ,Susan. Understanding Biology for Advanced Level. 4th ed. Cheltenham˜bStanley thornesœc1999.

MLA (9th ed.) Citation

Toole ,Glenn, and Toole ,Susan. Understanding Biology for Advanced Level. 4th ed.

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