Gaya APA

Collins, M, O. (1990). Contemplative participation,Sacrosanctum Concilium twenty- five years later. . Collegeville: Liturgical Press.

Gaya MLA

Collins, Mary,, O.S.B.. "Contemplative participation,Sacrosanctum Concilium twenty- five years later. ". Collegeville: Liturgical Press, 1990. Buku.