APA (7e ed.) Bronvermelding

Engelman. The Selected Papers of Margaret Sanger, Volume 4. University of Illinois Press.

Chicago (17e ed.) Bronvermelding

Engelman. The Selected Papers of Margaret Sanger, Volume 4. University of Illinois Press.

MLA (9e ed.) Bronvermelding

Engelman. The Selected Papers of Margaret Sanger, Volume 4. University of Illinois Press.

Let op: Deze citaties zijn niet altijd 100% accuraat.