APA (7th ed.) Citation

Follett, D. W., Nilsen, W. D., & Gross, H. H. (1969). Exploring world communities. Follett.

Chicago Style (17th ed.) Citation

Follett, Dwight W., Wedel D. Nilsen, and Herbert H. Gross. Exploring World Communities. Chicago: Follett, 1969.

MLA (9th ed.) Citation

Follett, Dwight W., et al. Exploring World Communities. Follett, 1969.