Aids in Europe - the behavioural aspect : : vol. 4: determinants of behaviour change / / Dorothee Friedrich; Wolfgang Heckmann.

MLA

Friedrich, Dorothee, and Wolfgang Heckmann. Aids In Europe - the Behavioural Aspect : Vol. 4: Determinants of Behaviour Change. Berlin: SIGMA, 1995.

APA

Friedrich, D., & Heckmann, W. (1995). Aids in Europe - the behavioural aspect : vol. 4: determinants of behaviour change. Berlin: SIGMA.

Chicago

Friedrich, Dorothee, and Wolfgang Heckmann. Aids In Europe - the Behavioural Aspect: Vol. 4: Determinants of Behaviour Change. Berlin: SIGMA, 1995.