1. The Measure of the Moon;Baldwin,1963
2. A Summary of Relative Ages of Lunar Nearside and Farside Plains;Boyce,1975
3. Rubidium-strontium chronology and chemistry of lunar material from the Ocean of Storms;Compston,1971
4. When was the Apollo 12 KREEP ejected?;Eberhardt,1972
5. New geological findings in Apollo 15 lunar orbital photography;El-Baz,1972