Billy, J. O. G. (1984). Community-level effects on adolescent sexual behavior. Univ. Microfilms Intern.
Cita Chicago Style (17a ed.)Billy, John O. G. Community-level Effects on Adolescent Sexual Behavior. Ann Arbor, Mich: Univ. Microfilms Intern, 1984.
Cita MLA (8a ed.)Billy, John O. G. Community-level Effects on Adolescent Sexual Behavior. Univ. Microfilms Intern, 1984.
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