Cita APA (7th ed.)

Levin, G., & Roberts, E. B. (1976). The dynamics of human service delivery. Ballinger Publishing Co.

Cita Chicago (17th ed.)

Levin, Gilbert, i Edward B. Roberts. The Dynamics of Human Service Delivery. Cambridge, Mass: Ballinger Publishing Co, 1976.

Cita MLA (9th ed.)

Levin, Gilbert, i Edward B. Roberts. The Dynamics of Human Service Delivery. Ballinger Publishing Co, 1976.