Bradley, Joseph F., author
Holt, Rinehart and Winston, 1969
Buku Teks
Bradley, Joseph F., author
Dryden Press, 1974
Buku Teks
Marvin, Philip Roger, author
Research Press, 1954
Buku Teks
Husband, George R., author
Chilton Book, 1959
Buku Teks
Britt, Steuart Henderson, author
McGraw-Hill , 1968
Buku Teks