1. Stratigraphy of the Apollo 15 drill core;Heiken;NASA TMX-58101,1972
2. Preliminary report on the Apollo 16 drill core, Communication to principal investigators from the Lunar Sample Curator's Office;Duke,1972
3. The Apollo 15 lunar samples;Lunar Sample Preliminary Examination Team;Science,1972
4. Apollo drill core depth relationships, Communication to principal investigators from the Lunar Sample Curator's Office and submitted to The Moon;Carrier,1973
5. 40Ar/36Ar variations in Apollo 15 and 16 regolith;Bogard,1973