Pius XI.

MLA

Lazzarini, Luigi, and A Hendrickx. Pius Xi. Brugge: Beyaert, 1938.

APA

Lazzarini, L., & Hendrickx, A. (1938). Pius XI. Brugge: Beyaert.

Chicago

Lazzarini, Luigi Pius XI. Translated by A Hendrickx. Brugge: Beyaert, 1938.