(2000). Social problems 00/01 (28th ed.). Guilford: Duskin/McGraw-Hill.
Chicago Style aipamenaSocial Problems 00/01. 28th ed. Guilford: Duskin/McGraw-Hill, 2000.
MLA aipamenaSocial Problems 00/01. 28th ed. Guilford: Duskin/McGraw-Hill, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.