Social Mobility and FertilityKASARDA, J. D; BILLY, J. O. G.Annual review of sociology. 1985, Vol 11, pp 305-328, issn 0360-0572Article

Patterns of Adolescent Friendship and Effects on Sexual BehaviorBILLY, J. O. G; UDRY, R.Social Psychology. 1985, Vol 48, Num 1, pp 27-41Article

Patterns of adolescent friendship and effects on sexual behaviorBILLY, J. O. G; UDRY, J. R.Social psychology quarterly. 1985, Vol 48, Num 1, pp 27-41, issn 0190-2725Article

The Influence of Socioeconomic Status on Adolescent PregnancyHAYWARD, M. D; GRADY, W. R; BILLY, J. O. G et al.Social science quarterly. 1992, Vol 73, Num 4, pp 750-772, issn 0038-4941Article

Serum androgenic hormones motivate sexual behavior in adolescent boysUDRY, J. R; BILLY, J. O. G; MORRIS, N. M et al.Fertility and sterility. 1985, Vol 43, Num 1, pp 90-94, issn 0015-0282Article

Effects of sexual activity on adolescent social and psychological developmentBILLY, J. O. G; LANDALE, N. S; GRADY, W. R et al.Social psychology quarterly. 1988, Vol 51, Num 3, pp 190-212, issn 0190-2725Article

Contextual influences on school provision of health servicesBILLY, J. O. G; GRADY, W. R; WENZLOW, A. T et al.Journal of adolescent health. 2000, Vol 27, Num 1, pp 12-24, issn 1054-139XArticle