APA (7th ed.) Citation

C, T. (1960). The current status of contraceptive practice in the United States. Proceedings of the Rudolf Virchow Medical Society in the City of New York, 19, 28. https://doi.org/10.1159/000405768

Chicago Style (17th ed.) Citation

C, TIETZE. "The Current Status of Contraceptive Practice in the United States." Proceedings of the Rudolf Virchow Medical Society in the City of New York 19 (1960): 28. https://doi.org/10.1159/000405768.

MLA (9th ed.) Citation

C, TIETZE. "The Current Status of Contraceptive Practice in the United States." Proceedings of the Rudolf Virchow Medical Society in the City of New York, vol. 19, 1960, p. 28, https://doi.org/10.1159/000405768.