Leopardi progressivo / Cesare Luporini. - Luporini, Cesare. (OLS)http://pul/name/87358 (Editori Riuniti, 1980)
Bibliografia in nota.

Dialogue with people of living faiths and ideologies: minutes of the third meeting of the working group, Trinidad, May 17-24, 1978. - Meeting of the working group (3. : 1978 : Trinidad, Cuba). (OLS)http://pul/name/66473; World Council of Churches. (OLS)http://pul/name/49878 (World Council of Churches, 1978)