@inbook{Klassen1989,
author = {Klassen, A.D. and Williams, C.J. and Levitt, E.E. and Rudkin-Miniot, L. and Gunjal, S.},
title= {Trends in Premarital Sexual Behavior},
year = {1989},
editor = {Turner, C.F.},
editor = {Miller, H.G.},
editor = {Moses, L.E. },
booktitle = {AIDS, Sexual Behavior, and Intravenous Drug Use},
address = {Washington, DC},
publisher = {National Academy Press},
pages = {548--567},
}