Projective planes/
Stevenson,Frederick W
Projective planes/ Frederick W.Stevenson - San Francisco, W.H. Freeman , 1972. - x,416p.
0716704439
Projective planes
516.5 / STE/P
Projective planes/ Frederick W.Stevenson - San Francisco, W.H. Freeman , 1972. - x,416p.
0716704439
Projective planes
516.5 / STE/P