APA
Frain J., . (1992). Principles and practice of Marketing. : Wheelar Publicing.
Chicago
Frain John, . 1992. Principles and practice of Marketing. : Wheelar Publicing.
Harvard
Frain J., . (1992). Principles and practice of Marketing. : Wheelar Publicing.
MLA
Frain John, . Principles and practice of Marketing. : Wheelar Publicing. 1992.