APA citiranje

Cunninggham, W. P. (1999). Student study guide to accompany environmental science: A global concern. WCB/McGraw-Hill.

Trích dẫn kiểu Chicago

Cunninggham, William P. Student Study Guide to Accompany Environmental Science: A Global Concern. WCB/McGraw-Hill, 1999.

MLA citiranje

Cunninggham, William P. Student Study Guide to Accompany Environmental Science: A Global Concern. WCB/McGraw-Hill, 1999.