Gaya APA

Sparling, Keith. (1992). How to evaluate and improve your marketing department (Keith>;;;;). United States: McGraw-Hill Contemporary.

Gaya Chicago

Sparling, Keith. How to evaluate and improve your marketing department. Keith>;;;; United States: McGraw-Hill Contemporary, 1992. Text.

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Sparling, Keith. How to evaluate and improve your marketing department. Keith>;;;; United States: McGraw-Hill Contemporary, 1992. Text.

Gaya Turabian

Sparling, Keith. How to evaluate and improve your marketing department. Keith>;;;; United States: McGraw-Hill Contemporary, 1992. Print.