Gaya APA

Enger, E, D., Ross, F, C. (2003). Student study guide for use with: concepts in biology (10th ed). Boston: Mcgraw-Hill Higher Education.

Gaya MLA

Enger, Eldon, D.., Ross, Frederick, C.. "Student study guide for use with: concepts in biology". 10th ed Boston: Mcgraw-Hill Higher Education, 2003. Printed Book.