APA (7th ed.) Citation

Wells, L. T. (1974). The product life cycle and international trade (2nd printing.). Harvard University, Graduate School of Business Administration.

Chicago Style (17th ed.) Citation

Wells, Louis T. The Product Life Cycle and International Trade. 2nd printing. Boston: Harvard University, Graduate School of Business Administration, 1974.

MLA (9th ed.) Citation

Wells, Louis T. The Product Life Cycle and International Trade. 2nd printing. Harvard University, Graduate School of Business Administration, 1974.