Natural family planning :

Additional authors: Lanctôt, Claude A. | International Federation for Family Life Promotion. Published by : IFFLP/FIDAF, (Washington, D.C. :) Physical details: 202 p. : ill.photos,ports,maps. ; Subject(s): Birth control -- Congresses. | Contraception -- Congresses. Year: 1984 Reviews from LibraryThing.com: