APA-referens (7:e uppl.)
Sugawara, Y. (1997). Religious poverty: From Vatican Council II to the 1994 Synod of Bishops. Pontificia Università Gregoriana.
Chicago-referens (17:e uppl.)
Sugawara, Yuji. Religious Poverty: From Vatican Council II to the 1994 Synod of Bishops. Roma: Pontificia Università Gregoriana, 1997.
MLA-referens (9:e uppl.)
Sugawara, Yuji. Religious Poverty: From Vatican Council II to the 1994 Synod of Bishops. Pontificia Università Gregoriana, 1997.
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