Park, W. H., & Williams, A. W. (1914). Pathogenic microörganisms: A practical manual for students, physicians, and health officers (5th ed., enl., and throughly rev.). Lea & Febiger.

Park, William Hallock, and Anna Wessels Williams. Pathogenic Microörganisms: A Practical Manual for Students, Physicians, and Health Officers. 5th ed., enl., and throughly rev. New York, Philadelphia: Lea & Febiger, 1914.

Park, William Hallock, and Anna Wessels Williams. Pathogenic Microörganisms: A Practical Manual for Students, Physicians, and Health Officers. 5th ed., enl., and throughly rev. Lea & Febiger, 1914.