Dou, A. (1970). Logical and historical remarks on Saccheri's geometry. University.
Cita Chicago Style (17a ed.)Dou, Alberto. Logical and Historical Remarks on Saccheri's Geometry. Notre Dame, Indiana: University, 1970.
Cita MLA (9a ed.)Dou, Alberto. Logical and Historical Remarks on Saccheri's Geometry. University, 1970.
Precaución: Estas citas no son 100% exactas.