Bowman memorial lectures
American Geographical Society
by Laurence M.Gould
American Geographical Society 1958 Bowman memorial lectures ser. 4
Available at 5 libraries
by H.W. Son Ahlmann
American Geographical Society 1953 Bowman memorial lectures ser. 3
Available at 12 libraries
by Carl O. Sauer
American Geographical Society 1952 Bowman memorial lectures ser. 2
Available at 19 libraries
by Charles Seymour
American Geographical Society 1951 Bowman memorial lectures ser. 1
Available at 3 libraries