APA (7th ed.) Citation

ENGER, E. D. Environmental science a study of interrelationships. McGraw-Hill.

Chicago Style (17th ed.) Citation

ENGER, ELDON D. Environmental Science a Study of Interrelationships. McGraw-Hill.

MLA (8th ed.) Citation

ENGER, ELDON D. Environmental Science a Study of Interrelationships. McGraw-Hill.

Warning: These citations may not always be 100% accurate.