APA (7e ed.) Bronvermelding

Fruham, W. E. (1972). The fight for competitive advantage: A study of the United States domestic trunk air carriers. Division of Research, Graduate School of Business Administration, Harvard University.

Chicago (17e ed.) Bronvermelding

Fruham, William E. The Fight for Competitive Advantage: A Study of the United States Domestic Trunk Air Carriers. Boston: Division of Research, Graduate School of Business Administration, Harvard University, 1972.

MLA (8e ed.) Bronvermelding

Fruham, William E. The Fight for Competitive Advantage: A Study of the United States Domestic Trunk Air Carriers. Division of Research, Graduate School of Business Administration, Harvard University, 1972.