APA aipamena

Observatory, A. Miscellaneous scientific papers of the Allegheny Observatory. Pittsburgh, Pa.

Chicago Style aipamena

Observatory, Allegheny. Miscellaneous Scientific Papers of the Allegheny Observatory. Pittsburgh, Pa.

MLA aipamena

Observatory, Allegheny. Miscellaneous Scientific Papers of the Allegheny Observatory. Pittsburgh, Pa.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.