Scientific American. (1969). Readings in the earth science (14th ed.). W H Freeman.
Chicago Style aipamenaScientific American. Readings in the Earth Science. 14th ed. San Francisco: W H Freeman, 1969.
MLA aipamenaScientific American. Readings in the Earth Science. 14th ed. W H Freeman, 1969.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.