Shenkman, M. M. (1998). The beneficiary workbook. John Wiley.
Lua i Stíl Chicago (17ú heag.)Shenkman, Martin M. The Beneficiary Workbook. New York: John Wiley, 1998.
Lua MLA (8ú heag.)Shenkman, Martin M. The Beneficiary Workbook. John Wiley, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.