APA

Derr R. L., . (1973). A taxonomy of social purposes of public schools: a handbook. New York: McKay.

Chicago

Derr Richard Luther, . 1973. A taxonomy of social purposes of public schools: a handbook. New York: McKay.

Harvard

Derr R. L., . (1973). A taxonomy of social purposes of public schools: a handbook. New York: McKay.

MLA

Derr Richard Luther, . A taxonomy of social purposes of public schools: a handbook. New York: McKay. 1973.