APA (7th ed.) Zitazioa

Friedlander Walter A. (1958). Concepts and methods of social work. Prentice-Hall.

Chicago Style (17th ed.) Zitazioa

Friedlander Walter A. Concepts and Methods of Social Work. Englewood Cliffs, N.J: Prentice-Hall, 1958.

MLA (9th ed.) Zitazioa

Friedlander Walter A. Concepts and Methods of Social Work. Prentice-Hall, 1958.