Scientology Chronology - April 1969
| April 4, 1971 | Use of Quad Dianetics | |
| April 5, 1971 | Summary of How to Write an Auditor's Report and Worksheets for TRs andObjectives Co-audit | |
| April 5, 1971 | Triple and Quad Reruns | |
| April 6, 1971 | Non-F/N Cases | |
| April 6, 1971 | Org Board Knowledge | |
| April 11, 1971 | L3RH, Dianetics and Int RD Repair List | |
| April 19, 1971 | Tech Delivery Quality | |
| April 21, 1971 | Quadruple Dianetics, Dangers Of | |
| April 26, 1971 | FP Activation | |
| April 26, 1971 | TRs and Cognitions | |
| April 27, 1971 | Education, Definition Of | |
| April 28, 1971 | Okays to Audit in HGCs | |
| April 30, 1971 | Auditing Comm Cycle | |
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