#1922 LAC 78 Engineering geology of the Apollo 16 (Descartes) traverse area Boudette, E L · 1972 #1927 M LAC 78 Geologic map of the Apollo 16 (Descartes) landing site area 1: 25 000 Elston, Donald P · 1972 #1928 M LAC 78 Geologic map of the Apollo 16 (Descartes) region 1: 100 000 Elston, Donald P · 1972 #1934 LAC 79 I-714 Geologic Map of the Colombo Quadrangle of the Moon 1: 1 000 000 Elston, Donald P · 1972 #1842 M LAC 78 Preliminary geologic map of Proposed Apollo 16 landing area, Descartes Region of Moon 1: 31 000 Elston, Donald P · 1971 #1539 Moon landing site Preliminary large-scale geologic map of part of the Marius Hills Region, geologic details added along traverse lines 1: 25 000 McCauley, John F · 1969 #909 Sites for Apollo and AES exploration Elston, Donald P · 1966 #915 Traverse and lunar-base exploration Elston, Donald P · 1966 #729 Explaination for the Preliminary Geologic Map of the Colombo Quadrangle Elston, Donald P · 1965 #733 Explanation for Preliminary Geologic Map of the Fracastorius Quadrangle Elston, Donald P · 1965 #766 LAC 79 Preliminary Geologic Map of the Colombo Quadrangle Elston, Donald P · 1965 #768 LAC 97 Preliminary Geologic Map of the Fracastorius Quadrangle of the Moon Map Making Set 1: 1 000 000 Elston, Donald P · 1965 #789 Suggested landing sites and exporation traverses for Apollo, AES, MOLAB and LESA exploration Elston, Donald P · 1965