Gaya APA

ENGER, Eldon D., SMITH, Bardley F.. (2002). Environmental Science : A. Study of Interrelationships (8th.ed). New York: McGraw-Hill Higher Education.

Gaya Chicago

ENGER, Eldon D., SMITH, Bardley F.. Environmental Science : A. Study of Interrelationships. 8th.ed New York: McGraw-Hill Higher Education, 2002. .

Gaya MLA

ENGER, Eldon D., SMITH, Bardley F.. Environmental Science : A. Study of Interrelationships. 8th.ed New York: McGraw-Hill Higher Education, 2002. .

Gaya Turabian

ENGER, Eldon D., SMITH, Bardley F.. Environmental Science : A. Study of Interrelationships. 8th.ed New York: McGraw-Hill Higher Education, 2002. .