Mark Wieczorek, M. A.; et al. (2006). "The constitution and structure of the lunar interior". Reviews in Mineralogy and Geochemistry. 60 (1): 221–364. Bibcode:2006RvMG...60..221W. doi:10.2138/rmg.2006.60.3.
Mark Wieczorek, M. A.; et al. (2006). "The constitution and structure of the lunar interior". Reviews in Mineralogy and Geochemistry. 60 (1): 221–364. Bibcode:2006RvMG...60..221W. doi:10.2138/rmg.2006.60.3.
Dictionary of Military and Associated Terms (2005). "selenodesy"(Selenodesy is "that branch of applied mathematics that determines, by observation and measurement, the exact positions of points and the figures and areas of large portions of the moon's surface, or the shape and size of the moon".). US Department of Defense and The free dictionary (online). Retrieved 2010-06-20.