Cita APA (7th ed.)

Keyes, W. J. (1978). Housing the urban poor. The Jesuit/Philippine province.

Cita Chicago (17th ed.)

Keyes, William J. "Housing the Urban Poor." The Jesuit/Philippine Province 1978.

Cita MLA (9th ed.)

Keyes, William J. "Housing the Urban Poor." The Jesuit/Philippine Province, 1978.