Cita APA (7a ed.)

Ellard, G., & Burns, M. A. (1951). Service. Loyola University Press.

Cita Chicago Style (17a ed.)

Ellard, Gerald, y M. Anne Burns. Service. Chicago: Loyola University Press, 1951.

Cita MLA (9a ed.)

Ellard, Gerald, y M. Anne Burns. Service. Loyola University Press, 1951.