Spencer, M. S. (1997). Operations Theory and Marketing Theory: What are We Really Teaching? Universidad de Puerto Rico.
Chicago-Zitierstil (17. Ausg.)Spencer, Michael S. Operations Theory and Marketing Theory: What Are We Really Teaching? Universidad de Puerto Rico, 1997.
MLA-Zitierstil (9. Ausg.)Spencer, Michael S. Operations Theory and Marketing Theory: What Are We Really Teaching? Universidad de Puerto Rico, 1997.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.