APA Alıntı

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

Chicago Stili Alıntı

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

MLA Alıntı

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