APA (7. basım) Alıntı

Schäfer, R. (2007). Climate, Water Supply, Energy and Food: Challenges for the future. Topos.

Chicago Style (17. basım) Atıf

Schäfer, Robert. "Climate, Water Supply, Energy and Food: Challenges for the Future." Topos 2007.

MLA (8th ed.) Atıf

Schäfer, Robert. "Climate, Water Supply, Energy and Food: Challenges for the Future." Topos, 2007.