Natural family planning : current knowledge and new strategies fo r the 1990s. - Queenan, John T.; Georgetown University (Washington, D.C. : Georgetown University, 1990)
Proceedings of a conference, paprt II, Georgetown University, Washin gton DC, December 10-14, 1990; John T. Queenan ... [et al].
Keywords: Birth control -- United States; United States -- Population