APA

Frenzel L. E., . (1983). The Howard W . Sams. New delhi: Howard W .Sams & Co , Inc.

Chicago

Frenzel Louis E, . 1983. The Howard W . Sams. New delhi: Howard W .Sams & Co , Inc.

Harvard

Frenzel L. E., . (1983). The Howard W . Sams. New delhi: Howard W .Sams & Co , Inc.

MLA

Frenzel Louis E, . The Howard W . Sams. New delhi: Howard W .Sams & Co , Inc. 1983.