Erwin, P. C., & Brownson, R. C. (2017). Scutchfield and Keck's principles of public health practice (4th ed.). Cengage Learning.
Chicago Style (17th ed.) CitationErwin, Paul C., and Ross C. Brownson. Scutchfield and Keck's Principles of Public Health Practice. 4th ed. Boston, Massachusetts: Cengage Learning, 2017.
MLA (9th ed.) CitationErwin, Paul C., and Ross C. Brownson. Scutchfield and Keck's Principles of Public Health Practice. 4th ed. Cengage Learning, 2017.
Warning: These citations may not always be 100% accurate.