Cita APA (7a ed.)

Covington, J. (1987). Addict attitudes toward legalization of heroin. Contemporary drug problems, 14(2), 315-340.

Cita Chicago Style (17a ed.)

Covington, Jeanette. "Addict Attitudes Toward Legalization of Heroin." Contemporary Drug Problems 14, no. 2 (1987): 315-340.

Cita MLA (8a ed.)

Covington, Jeanette. "Addict Attitudes Toward Legalization of Heroin." Contemporary Drug Problems, vol. 14, no. 2, 1987, pp. 315-340.