Geometry in 1969

Darstellende Geometrie by Rehbock, Fritz

Singular Points of Complex Hypersurfaces (Am-61), Volume 61 by Milnor, John

Theorie Der Flächenkrümmung by Strubecker, Karl

Axonometrie und Perspektive by Haack, Wolfgang

Analytische Geometrie by Grotemeyer, Karl Peter

So Differential Geometry by Lipschutz