Sapienza, Leonardo. Spunti & appunti, 1997: t.p. (Leonardo Sapienza)

OCLC, Dec. 17, 1999 (hdg.: Sapienza, Leonardo)

Spirituality of the priesthood, 2010: t.p. (Leonardo Sapienza)

Libreria del Santo website, 13 April 2011: author page (Leonardo Sapienza, Rogationist priest, is the Protocol Officer of the Prefecture of the Papal Household; site also includes listings of author's works) www.libreriadelsanto.it/libri_di/autore/Leonardo_Sapienza