Oxford University Press, 1993
Buku Teks
Richard Jessor, editor
Westview Press, 1991
Buku Teks
edited, Nathan Reingold; edited, Ida H. Reingold
University of Chicago Press, 1981
Buku Referensi
Roland Holst, R. N.
J. M. Meulenhoff, 1940
Buku Teks
edited by Allan Nevins and Louis M. Hacker
D.C. Heath, 1943
Buku Teks