Παραπομπή APA

Hise, R. T. (1977). Product/service strategy. Petrocelli/Charter.

Παραπομπή Chicago Style

Hise, Richard T. Product/service Strategy. New York: Petrocelli/Charter, 1977.

Παραπομπή MLA

Hise, Richard T. Product/service Strategy. Petrocelli/Charter, 1977.