Havemann, E. (1967). Birth control. Time-Life Books.
Tohutoru Kātū Chicago (17th ed.)Havemann, Ernest. Birth Control. New York: Time-Life Books, 1967.
Tohutoro MLA (9th ed.)Havemann, Ernest. Birth Control. Time-Life Books, 1967.
Kia tūpato: Kāore pea ēnei kupu hautoa i te ōrite pū 100%.