Robock, S. H., Simmonds, K., & Zwick, J. (1977). International business and multinational enterprises: By Stefan H. Robock (Rev. ed.). Irwin.
Lua i Stíl Chicago (17ú heag.)Robock, Stefan H., Kenneth Simmonds, agus Jack Zwick. International Business and Multinational Enterprises: By Stefan H. Robock. Rev. ed. Homewood, Ill: Irwin, 1977.
Lua MLA (9ú heag.)Robock, Stefan H., et al. International Business and Multinational Enterprises: By Stefan H. Robock. Rev. ed. Irwin, 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.