Gaya APA

Al Ries, Chairman, Jack Trout. (1981). Positioning : The Battle for Your Mind . Sebastopol, CA: McGraw-Hill Book Company, INC.

Gaya Chicago

Al Ries, Chairman, Jack Trout. Positioning : The Battle for Your Mind. Sebastopol, CA: McGraw-Hill Book Company, INC, 1981. .

Gaya MLA

Al Ries, Chairman, Jack Trout. Positioning : The Battle for Your Mind. Sebastopol, CA: McGraw-Hill Book Company, INC, 1981. .

Gaya Turabian

Al Ries, Chairman, Jack Trout. Positioning : The Battle for Your Mind. Sebastopol, CA: McGraw-Hill Book Company, INC, 1981. .