Ascher, S. (1980). An investigation of a space time clustering problem. University Microfilms International.
Cita Chicago Style (17a ed.)Ascher, Steven. An Investigation of a Space Time Clustering Problem. Ann Arbor: University Microfilms International, 1980.
Cita MLA (9a ed.)Ascher, Steven. An Investigation of a Space Time Clustering Problem. University Microfilms International, 1980.
Precaución: Estas citas no son 100% exactas.