APA (7th ed.) Citation

Decker, R., & Gaul, W. (1989). Classification and selection of consumer purchase behaviour models.

Chicago Style (17th ed.) Citation

Decker, Reinhold, and Wolfgang Gaul. Classification and Selection of Consumer Purchase Behaviour Models. Karlsruhe, 1989.

MLA (9th ed.) Citation

Decker, Reinhold, and Wolfgang Gaul. Classification and Selection of Consumer Purchase Behaviour Models. 1989.

Warning: These citations may not always be 100% accurate.