- Dane Rudyar, The Lunation Cycle, A Key to Understanding Personality 1967
- Alexander Ruperti, Cycles of Becoming, The Planetary Pattern of Growth 1978
- The Cosmic Clocks, Michel Gauquelin 1982
- Georgia Stathis, Pushing through Time, 2018
- Nick Anthony Fiorenza, All squares are not alike………. https://www.lunarplanner.com/HCpages/SynodicCycle.html ©2003-2019
