Friedrich, D., & Heckmann, W. (1995). Aids in Europe - the behavioural aspect: Dorothee Friedrich ; Wolfgang Heckmann (eds.). [Conference organized by Robert-Koch-Institut, AIDS-Zentrum]. Sigma.
Cita Chicago Style (17a ed.)Friedrich, Dorothee, y Wolfgang Heckmann. Aids in Europe - the Behavioural Aspect: Dorothee Friedrich ; Wolfgang Heckmann (eds.). [Conference Organized by Robert-Koch-Institut, AIDS-Zentrum]. Berlin: Sigma, 1995.
Cita MLA (8a ed.)Friedrich, Dorothee, y Wolfgang Heckmann. Aids in Europe - the Behavioural Aspect: Dorothee Friedrich ; Wolfgang Heckmann (eds.). [Conference Organized by Robert-Koch-Institut, AIDS-Zentrum]. Sigma, 1995.
Precaución: Estas citas no son 100% exactas.