Παραπομπή σε μορφή APA (7η εκδ.)

Masters, G. M., & Ela, W. (2008). Introduction to environmental engineering and science (3rd ed.). Pearson Education.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Masters, Gilbert M., και Wendell Ela. Introduction to Environmental Engineering and Science. 3rd ed. Upper Saddle River, N.J.: Pearson Education, 2008.

Παραπομπή σε μορφή MLA (9th εκδ.)

Masters, Gilbert M., και Wendell Ela. Introduction to Environmental Engineering and Science. 3rd ed. Pearson Education, 2008.