1. Ogni volta: e solamente la tua-- Publication: [Zurich] : Aids-Hilfe Schweiz, [19--?] Subject(s): Acquired Immunodeficiency Syndrome -- prevention & controlCondomsSafe SexNeedle Sharing -- adverse effects
2. D'accordo Publication: [Zurich] : Aiuto AIDS Svizzero ; [Bern] : Ufficio federale della sanitá pubblica, [19--?] Subject(s): Acquired Immunodeficiency Syndrome -- prevention & controlCondoms