APA aipamena

Heitz, J., & Giffen, C. (2008). Practicing biology: A student workbook (Third edition.). Pearson Eduction.

Chicago Style aipamena

Heitz, Jean, and Cynthia Giffen. Practicing Biology: A Student Workbook. Third edition. San Francisco, CA: Pearson Eduction, 2008.

MLA aipamena

Heitz, Jean, and Cynthia Giffen. Practicing Biology: A Student Workbook. Third edition. Pearson Eduction, 2008.