APA (7 ম সংস্করণ) উদ্ধৃতি

John XXIII, P. (1960). On the use of leisure time: Letter to Social Week of Italian Catholics, September 20, 1959. N.C.W.C..

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

John XXIII, Pope. On the Use of Leisure Time: Letter to Social Week of Italian Catholics, September 20, 1959. Washington, D.C.: N.C.W.C., 1960.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

John XXIII, Pope. On the Use of Leisure Time: Letter to Social Week of Italian Catholics, September 20, 1959. N.C.W.C., 1960.