APA aipamena

HEINRICH, E. Microscopic Petrography#E. WM. Heinrich. Mc Graw-Hill.

Chicago Style aipamena

HEINRICH, E.WN. Microscopic Petrography#E. WM. Heinrich. Mc Graw-Hill.

MLA aipamena

HEINRICH, E.WN. Microscopic Petrography#E. WM. Heinrich. Mc Graw-Hill.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.