Branch of Astrogeology—A Chronology of Activities from Conception through the End of Project Apollo

https://pubs.usgs.gov/of/2005/1190/

https://spacegrant.nmsu.edu/lunarlegacies/lunar_geology.htm

https://pubs.usgs.gov/of/2005/1190/of2005-1190_figs_080-101.pdf

https://www.lpi.usra.edu/resources/apollo/slideshow/metric/

https://www.hq.nasa.gov/alsj/ap-geotrips.html

http://www.explorationmuseum.com/astronaut-training/

THE GEOLOGIST IN APOLLO

https://www.space.com/20789-harrison-schmitt-astronaut-biography.html

https://appel.nasa.gov/2008/09/01/teaching-geology-to-apollo-astronauts/