APA (7th ed.) Citation

Grashof, J. F., & Kelman, A. P. (1973). Introduction to macro-marketing. [Grid, inc.].

Chicago Style (17th ed.) Citation

Grashof, John F., and Alan P. Kelman. Introduction to Macro-marketing. [Columbus, Ohio]: [Grid, inc.], 1973.

MLA (9th ed.) Citation

Grashof, John F., and Alan P. Kelman. Introduction to Macro-marketing. [Grid, inc.], 1973.