Cita APA (7a ed.)

Juan Pablo II, P. (1981). Encyclical Laborem exercens. Libreria Editrice Vaticana.

Cita Chicago Style (17a ed.)

Juan Pablo II, Papa. Encyclical Laborem Exercens. [Vatican City]: Libreria Editrice Vaticana, 1981.

Cita MLA (9a ed.)

Juan Pablo II, Papa. Encyclical Laborem Exercens. Libreria Editrice Vaticana, 1981.