Patricia Schnering. Professional Review Guide for the CCS Examination: 2008 Edition. Clifton Park, N.Y: PRG Publishing,Inc./Delmar Cengage Learning.
Παραπομπή Chicago StylePatricia Schnering. Professional Review Guide for the CCS Examination: 2008 Edition. Clifton Park, N.Y: PRG Publishing,Inc./Delmar Cengage Learning.
Παραπομπή MLAPatricia Schnering. Professional Review Guide for the CCS Examination: 2008 Edition. Clifton Park, N.Y: PRG Publishing,Inc./Delmar Cengage Learning.
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