Brinton, Crane, 1898-1968, author
Prentice-Hall, 1957
Buku Teks
Zink, Harold, author
D. Van Nostrand, 1962
Buku Teks
Zink, Harold, author
D. Van Nostrand, 1962
Buku Teks
by James A. Richards, Jr. [and others]
Addison-Wesley , 1960
Buku Teks
Carroll, Jhon M., author
Mc-Graw-Hill, 1959
Buku Teks