Citazione Stile APA (7a Edizione)

Stevenson, H. H., & Roberts, M. J. (1989). New business ventures and the entrepreneur (3rd .ed.). Irwin.

Citazione stile Chigago Style (17a edizione)

Stevenson, Howard H., e Michael J. Roberts. New Business Ventures and the Entrepreneur. 3rd .ed. Boston: Irwin, 1989.

Citatione MLA (9a ed.)

Stevenson, Howard H., e Michael J. Roberts. New Business Ventures and the Entrepreneur. 3rd .ed. Irwin, 1989.