APA (7th ed.) Citation

Gelb, G. M., Gelb, G. M., & Gelb, B. D. (1977). Insights for marketing management (2nd ed.). Goodyear Pub.

Chicago Style (17th ed.) Citation

Gelb, Gabriel M., Gabriel M. Gelb, and Betsy D. Gelb. Insights for Marketing Management. 2nd ed. Santa Monica, Calif: Goodyear Pub, 1977.

MLA (9th ed.) Citation

Gelb, Gabriel M., et al. Insights for Marketing Management. 2nd ed. Goodyear Pub, 1977.