Cita APA (7a ed.)

Lecca, P. J., & Watts, T. D. (1993). Preschoolers and substance abuse: Strategies for prevention and intervention. Haworth Pr.

Cita Chicago Style (17a ed.)

Lecca, Pedro J., y Thomas D. Watts. Preschoolers and Substance Abuse: Strategies for Prevention and Intervention. New York [u.a.]: Haworth Pr, 1993.

Cita MLA (9a ed.)

Lecca, Pedro J., y Thomas D. Watts. Preschoolers and Substance Abuse: Strategies for Prevention and Intervention. Haworth Pr, 1993.