Mason, John Brown
Stanford University Press, 1946
Buku Teks
edited by Harold E. Pepinsky and Richard Quinney
Indiana University Press, 1991
Buku Teks
edited by Catherine S. Baxter
Lippincott, 1995
Buku Referensi
edited by Darla Haberer
William & Wilkins, 1997
Buku Referensi
William & Wilkins, 1997
Buku Referensi