Παραπομπή σε μορφή APA (7η εκδ.)

Enger, E. D., & Smith, B. F. (2022). Environmental science: A study of interrelationships (Sixteenth edition.). McGraw-Hill Education.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Enger, Eldon D., και Bradley F. Smith. Environmental Science: A Study of Interrelationships. Sixteenth edition. Dubuque: McGraw-Hill Education, 2022.

Παραπομπή σε μορφή MLA (9th εκδ.)

Enger, Eldon D., και Bradley F. Smith. Environmental Science: A Study of Interrelationships. Sixteenth edition. McGraw-Hill Education, 2022.