Friedlander Walter A. (1958). Concepts and methods of social work. Prentice-Hall.
Chicago-čujuhus (17. p.)Friedlander Walter A. Concepts and Methods of Social Work. Englewood Cliffs, N.J: Prentice-Hall, 1958.
MLA-čujuhus (9. p.)Friedlander Walter A. Concepts and Methods of Social Work. Prentice-Hall, 1958.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.