Gaya APA
Enger, Eldon D., Smith, Bradley F.. (2004).
Environmental science : a study of interrelationships (9th ed).
Boston:
McGraw-Hill.
Gaya Chicago
Enger, Eldon D., Smith, Bradley F..
Environmental science : a study of interrelationships.
9th ed
Boston:
McGraw-Hill,
2004.
Text.
Gaya MLA
Enger, Eldon D., Smith, Bradley F..
Environmental science : a study of interrelationships.
9th ed
Boston:
McGraw-Hill,
2004.
Text.
Gaya Turabian
Enger, Eldon D., Smith, Bradley F..
Environmental science : a study of interrelationships.
9th ed
Boston:
McGraw-Hill,
2004.
Print.