APA aipamena

Singer, M. (1987). Passage to a human world. Hudson Institute.

Chicago Style aipamena

Singer, Max. Passage to a Human World. Indianapolis, Ind.: Hudson Institute, 1987.

MLA aipamena

Singer, Max. Passage to a Human World. Hudson Institute, 1987.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.