Tohutoro APA (7th ed.)

Friedlnder, W. A., & Apte, R. Z. (1980). Introduction to social welfare (5th ed.). Prentice-Hall Inc..

Tohutoru Kātū Chicago (17th ed.)

Friedlnder, Walter A., me Robert Z. Apte. Introduction to Social Welfare. 5th ed. New Jersey: Prentice-Hall Inc., 1980.

Tohutoro MLA (9th ed.)

Friedlnder, Walter A., me Robert Z. Apte. Introduction to Social Welfare. 5th ed. Prentice-Hall Inc., 1980.