Porter, Donald E., author
International , 1964
Buku Teks
Haire, Mason, author
McGraw-Hill, 1964
Buku Teks
Haire, Mason, author
McGraw-Hill, 1956
Buku Teks
This, Leslie E.
Addison-Wesley Pub. Co. , 1974
Buku Teks
Gilmer, B. von Haller (Beverly von Haller), 1909-1994, author
McGraw-Hill, 1977
Buku Teks