Schneider, Herbert W., author
Columbia University Press, 1947
Buku Teks
edited by Ralph B. Winn
Littlefield, Adams, 1963
Buku Teks
Buku Teks
edited by John K. Ryan
The Catholic University of America Press, 1963
Buku Teks
Susana Nuccetelli, Ofelia Schutte, Otavio Bueno
Wiley, 2013
Buku Teks