Analytical conics
Sommerville, D. M. Y.
Analytical conics - 3rd ed. - London : G. Bell and Sons, 1951 - viii,310p. : ill. ; 22cm.
Conics
QA559.S64
Analytical conics - 3rd ed. - London : G. Bell and Sons, 1951 - viii,310p. : ill. ; 22cm.
Conics
QA559.S64