Cita APA (7a ed.)

Helleu, A., & Gray, M. A. (1940). Jeanne Jugan: Foundress of the Little Sisters of the Poor. B. Herder.

Cita Chicago Style (17a ed.)

Helleu, Arsène, y Mary Agatha Gray. Jeanne Jugan: Foundress of the Little Sisters of the Poor. St. Louis: B. Herder, 1940.

Cita MLA (8a ed.)

Helleu, Arsène, y Mary Agatha Gray. Jeanne Jugan: Foundress of the Little Sisters of the Poor. B. Herder, 1940.