APA (7. basım) Alıntı
Hammen, T. v. d. (1979). Changes in life conditions on earth during the past one million years. Munksgaard.
Chicago Style (17. basım) Atıf
Hammen, Thomas van der. Changes in Life Conditions on Earth During the Past One Million Years. København: Munksgaard, 1979.
MLA (9th ed.) Atıf
Hammen, Thomas van der. Changes in Life Conditions on Earth During the Past One Million Years. Munksgaard, 1979.
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