Proceedings of the American Philosophical Society : held at Philadelphia for promoting useful knowledge.

Philadelphia, Pa. : The Society, 1838/40-1915; 1916-.
Umfang/Format: vols. : ill., facsims., maps, ports. ; 23-29 cm
Umfang/Format: Also issued on microfilm
Umfang/Format: Also issued online

Proceedings of the American Philosophical Society : held at Philadelphia for promoting useful knowledge.

Philadelphia, Pa. : The Society, 1838-.
Umfang/Format: 1 online resource.
Umfang/Format: Also issued on microfilm