Cita APA

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

Citación estilo Chicago

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

Cita MLA

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

Warning: These citations may not always be 100% accurate.