Geometry in 1969

Darstellende Geometrie by Rehbock, Fritz

Singular Points of Complex Hypersurfaces by Milnor, John

Theorie Der Flächenkrümmung by Strubecker, Karl

Axonometrie und Perspektive by Haack, Wolfgang

Analytische Geometrie by Grotemeyer, Karl Peter

Schaum's Outline of Differential Geometry by Lipschutz, Martin M.