Wulf, F. (1977). Ignatius of Loyola, his personality and spiritual heritage, 1556-1956: Studies on the 400th anniversary of his death. Institute of Jesuit Sources.
Citação do estilo Chicago (17ª ed.)Wulf, Friedrich. Ignatius of Loyola, His Personality and Spiritual Heritage, 1556-1956: Studies on the 400th Anniversary of His Death. St. Louis: Institute of Jesuit Sources, 1977.
Citação MLA (8ª ed.)Wulf, Friedrich. Ignatius of Loyola, His Personality and Spiritual Heritage, 1556-1956: Studies on the 400th Anniversary of His Death. Institute of Jesuit Sources, 1977.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.