Proceedings, American Philosophical Society (vol. 119, No. 6, 1975) Published: Total Pages: 86 Get eBook
Proceedings, American Philosophical Society (vol. 117, No. 6, 1973) Published: Total Pages: 172 Get eBook
Proceedings, American Philosophical Society (vol. 118, No. 6, 1974) Published: Total Pages: 120 Get eBook
Proceedings, American Philosophical Society (vol. 120, No. 6, 1976) Published: Total Pages: 168 Get eBook