Lehmer, Derrick Norman, 1868-1938.
An elementary course in synthetic projective geometry / by Derrick Norman Lehmer. - Boston ; New York : Ginn and Company, c1917. - xiii, 123 p. : ill. ; 20 cm.
17007198
Geometry, Projective.
QA471 / .L4
513 / LEE
An elementary course in synthetic projective geometry / by Derrick Norman Lehmer. - Boston ; New York : Ginn and Company, c1917. - xiii, 123 p. : ill. ; 20 cm.
17007198
Geometry, Projective.
QA471 / .L4
513 / LEE