Cita APA (7a ed.)

Iglesia Católica. (1993). Directory for the Application of Principles and Norms on Ecumenism. : [Vatican Press].

Cita Chicago Style (17a ed.)

Iglesia Católica. Directory for the Application of Principles and Norms on Ecumenism. Vatican City: : [Vatican Press], 1993.

Cita MLA (9a ed.)

Iglesia Católica. Directory for the Application of Principles and Norms on Ecumenism. : [Vatican Press], 1993.