APA

Morris Robert, National Association of Social Workers, . (1971). Encyclopedia of social work. New York: National Association of Social Workers.

Chicago

Morris Robert, National Association of Social Workers, . 1971. Encyclopedia of social work. New York: National Association of Social Workers.

Harvard

Morris Robert, National Association of Social Workers, . (1971). Encyclopedia of social work. New York: National Association of Social Workers.

MLA

Morris Robert, National Association of Social Workers, . Encyclopedia of social work. New York: National Association of Social Workers. 1971.