APA引文

Willoughby, E. F. (1893). Handbook of public health and demography ([3d ed.].). Macmillan.

Chicago Style (17th ed.) Citation

Willoughby, Edward F. Handbook of Public Health and Demography. [3d ed.]. London: Macmillan, 1893.

MLA引文

Willoughby, Edward F. Handbook of Public Health and Demography. [3d ed.]. Macmillan, 1893.