Dalen, D. v. (1963). Extension problems in intuitionistic plane projective geometry. Drukkerij Holland.
Chicagoスタイル(17版)引用形式Dalen, D. van. Extension Problems in Intuitionistic Plane Projective Geometry. Amsterdam: Drukkerij Holland, 1963.
MLA(8版)引用形式Dalen, D. van. Extension Problems in Intuitionistic Plane Projective Geometry. Drukkerij Holland, 1963.
警告: この引用は必ずしも正確ではありません.