by Lawrence L. Bethel ... [et al.]
McGraw-Hill, 1956
Buku Teks
by Lawrence L. Bethel ... [et al.]
McGraw-Hill, 1962
Buku Teks
Lundy, James L., author
Eurasia Publishing House, 1968
Buku Teks
Cerami, Charles A., author
Prentice-Hall, 1957
Buku Teks
Hodges, Henry G., author
Houghton Miffiln, 1955
Buku Teks