Unit 1 South-Western Century 21 Accounting: Cycle 1 Accounting for Service Business Organized as a Proprietorship, Cycle 2 Accounting for a Merchandising Business Organized as a Partnership, Cycle 3 Accounting for a Merchandising Business Organized as a Corporation. Unit 2 South-Western Century 21 Accounting Advanced: Part 1 Departmentalized Accounting, Part 2 Accounting Control Systems, Part 3 General Accounting Adjustments, Part 4 Corporation Accounting, Part 5 Management Accounting, Part 6 Cost Accounting, Part 7 Other Accounting Systems. Appendix A: System Requirements. Appendix B: Correlation to Century 21 Accounting. Appendix C: Software Features List. Appendix D: QuickBooks Message Boxes.