%0 Journal Article %A Crowe, D. W. %T Geometry of Complex Numbers, by Hans Schwerdtfeger. (Mathematical Expositions No. 13) University of Toronto Press, Toronto, 1961. xi + 186 pages. $4.95. %J Canadian mathematical bulletin %D 1964 %P 155-156 %V 7 %N 1 %U http://geodesic.mathdoc.fr/articles/10.1017/S000843950002693X/ %R 10.1017/S000843950002693X %F 10_1017_S000843950002693X