00612nam a2200205 a 4500 2568283 BD-DhUL 20140829145149.0 810322s1887 enk 000 0 eng d ANL eng ANL BD-DhUL 513.22 DRG Drew, W. H. (William Henry) A geometrical treatise on conic sections : with a copious collection of examples / W. H. Drew. London : Macmillan, c1933. 138 p. : ill. ; 20 cm. Includes Index. Conic sections. ddc BK ANL 513.22 DRE 6441 6441