APA (7th ed.) Citation

International Birth Control Conference. 6th, New York, 1925, American Birth Control League, & Sanger, M. 1. (1925). [Reportds and papers]. American Birth Control League.

Chicago Style (17th ed.) Citation

International Birth Control Conference. 6th, New York, 1925, American Birth Control League, and Margaret 1883 Sanger. [Reportds and Papers]. New York: American Birth Control League, 1925.

MLA (9th ed.) Citation

International Birth Control Conference. 6th, New York, 1925, et al. [Reportds and Papers]. American Birth Control League, 1925.