%0 Journal Article %A Wehlau, Amelia %T Principles of Astrometry (With Special Emphasis on Long-Focus Photographic Astrometry), by Peter van de Kamp. W.H. Freemanand Company, 1967. $6.50. %J Canadian mathematical bulletin %D 1967 %P 630-630 %V 10 %N 4 %U http://geodesic.mathdoc.fr/articles/10.1017/S0008439500028769/ %R 10.1017/S0008439500028769 %F 10_1017_S0008439500028769