Cita APA (7a ed.)

Armstrong, W. (1988). Catholic doctrine playing cards: Key principles and basic facts of faith for school religion classes, C.C.D. programs and family instruction to children. The Author.

Cita Chicago Style (17a ed.)

Armstrong, William. Catholic Doctrine Playing Cards: Key Principles and Basic Facts of Faith for School Religion Classes, C.C.D. Programs and Family Instruction to Children. Tacoma, Wash.: The Author, 1988.

Cita MLA (8a ed.)

Armstrong, William. Catholic Doctrine Playing Cards: Key Principles and Basic Facts of Faith for School Religion Classes, C.C.D. Programs and Family Instruction to Children. The Author, 1988.