APA aipamena

Biggs, A. (2001). Science Voyages: Earth Science. Glencoe/McGraw-Hill.

Chicago Style aipamena

Biggs, Alton. Science Voyages: Earth Science. Glencoe/McGraw-Hill, 2001.

MLA aipamena

Biggs, Alton. Science Voyages: Earth Science. Glencoe/McGraw-Hill, 2001.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.