Wilner, D. M., Walkley, R. P., Goerke, L. S., & Mustard, H. S. (1973). Introduction to public health (6th ed.). Macmillan.

Wilner, Daniel M., Rosabelle Price Walkley, Lenor S. Goerke, and Harry S. Mustard. Introduction to Public Health. 6th ed. New York: Macmillan, 1973.

Wilner, Daniel M., et al. Introduction to Public Health. 6th ed. Macmillan, 1973.