APA-čujuhus (7. p.)
Drake, R. F. (2001). The principles of social policy. Palgrave.
Chicago-čujuhus (17. p.)
Drake, Robert F. The Principles of Social Policy. Hampshire: Palgrave, 2001.
MLA-čujuhus (9. p.)
Drake, Robert F. The Principles of Social Policy. Palgrave, 2001.
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