The Panama canal and its ports
Print Book, English, 1946
United States Government Printing Office, Washington, D.C., 1946
v, 132 pages, 7 unnumbered leaves of plates : illustrations, maps, folded color plans ; 27 cm
761850
At head of title: War Department, Corps of Engineers, United States Army
"Revised 1946."
"11 September 1946 ... Chief of Engineers, United States Army ... supersedes Port Series No. 22, published in 1938 [under same title]."--Page iv
Maps and plans of port facilities folded-in as numbered leaves 130 and 132