Freudenberg, N. (1989). Preventing AIDS: A guide to effective education for the prevention of HIV infection. London: Chapman and Hall.
Trích dẫn kiểu ChicagoFreudenberg, Nicholas. Preventing AIDS: A Guide to Effective Education for the Prevention of HIV Infection. London: Chapman and Hall, 1989.
Trích dẫn MLAFreudenberg, Nicholas. Preventing AIDS: A Guide to Effective Education for the Prevention of HIV Infection. London: Chapman and Hall, 1989.
Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.