Παραπομπή APA

Brumfiel, G. Partially ordered rings and semi algebraic geometry. London Mathematical society.

Παραπομπή Chicago Style

Brumfiel, G.W. Partially Ordered Rings and Semi Algebraic Geometry. London: London Mathematical society.

Παραπομπή MLA

Brumfiel, G.W. Partially Ordered Rings and Semi Algebraic Geometry. London Mathematical society.