Heckenbach, Alan J., author
Macmillan, 1970
Buku Teks
by Anthony L. Peressini [and others]
The University of Chicago, 1989
Buku Teks
Wheeler, Ruric E., author
Brooks/Cole, 1967
Buku Teks
Wheeler, Ruric E., author
Brooks/Cole, 1970
Buku Teks
Wheeler, Ruric E., author
Brook/Cole, 1969
Buku Teks