01262nam--2200397---450-99000203089020331620051019132804.0000203089USA01000203089(ALEPH)000203089USA0100020308920040927d1981----km-y0itay0103----baengUSa-||||||001yySex and pregnancy in adolescenceby Melvin Zelnik, John F. Kantner, Katheleen FordBeverly Hills [etc.]SAGEcopyr. 1981272 p.ill.22 cmSage library of social research1332001Sage library of social research1332001001-------2001AdolescentiStati Uniti d'AmericaComportamento sessuale306.808ZELNIK,Melvin566572KANTNER,John F.566573FORD,Katheleen566574ITsalbcISBD990002030890203316II.5. 4771(VI C coll 39/133)15059 L.M.VI C collBKUMASIAV51020040927USA011603COPAT19020051019USA011328Sex and pregnancy in adolescence1041446UNISA