Weston, John Fred, 1916-
Henry Holt, 1969
Buku Teks
Weston, John Fred, 1916-
Henry Holt, 1972
Buku Teks
Weston, John Fred, 1916-
Dryden Press, 1978
Buku Teks
Weston, John Fred, 1916-
Dryden Press, 1992
Buku Teks
by David F. Scott ... [and others]
Prentice-Hall, 1993
Buku Teks