Cita APA (7th ed.)
BARNARD, M., & MCKEGANEY, N. (1991). ADOLESCENTS, SEX AND INJECTING DRUG USE: RISKS FOR HIV INFECTION.
Cita Chicago (17th ed.)
BARNARD, M., i N. MCKEGANEY. ADOLESCENTS, SEX AND INJECTING DRUG USE: RISKS FOR HIV INFECTION. 1991.
Cita MLA (9th ed.)
BARNARD, M., i N. MCKEGANEY. ADOLESCENTS, SEX AND INJECTING DRUG USE: RISKS FOR HIV INFECTION. 1991.
Atenció: Aquestes cites poden no estar 100% correctes.