Cita APA (7a ed.)

Tretjakewitsch, L. (1990). Bishop Michel d'Herbigny SJ and Russia: A pre-ecumenical approach to Christian unity. Augustinus-Verlag.

Cita Chicago Style (17a ed.)

Tretjakewitsch, Léon. Bishop Michel D'Herbigny SJ and Russia: A Pre-ecumenical Approach to Christian Unity. Würzburg: Augustinus-Verlag, 1990.

Cita MLA (9a ed.)

Tretjakewitsch, Léon. Bishop Michel D'Herbigny SJ and Russia: A Pre-ecumenical Approach to Christian Unity. Augustinus-Verlag, 1990.