Cita APA (7a ed.)

Francis, R. G. (1970). Crumbling walls. Schenkman Pub.

Cita Chicago Style (17a ed.)

Francis, Roy G. Crumbling Walls. Cambridge, Mass: Schenkman Pub, 1970.

Cita MLA (9a ed.)

Francis, Roy G. Crumbling Walls. Schenkman Pub, 1970.