APA aipamena

ARNOLD, C. A. (1947). An introduction to paleobotany. McGraw Hill.

Chicago Style aipamena

ARNOLD, Chester A. An Introduction to Paleobotany. McGraw Hill, 1947.

MLA aipamena

ARNOLD, Chester A. An Introduction to Paleobotany. McGraw Hill, 1947.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.