Cita APA (7a ed.)
Keller, P. (Nov88). URBAN DATA MANAGEMENT SOFTWARE (UDMS), PC/MS DOS Version 5.22 (Software). Professional Geographer, 40(4), 470.
Cita Chicago Style (17a ed.)
Keller, Peter. "URBAN DATA MANAGEMENT SOFTWARE (UDMS), PC/MS DOS Version 5.22 (Software)." Professional Geographer 40, no. 4 (Nov88): 470.
Cita MLA (9a ed.)
Keller, Peter. "URBAN DATA MANAGEMENT SOFTWARE (UDMS), PC/MS DOS Version 5.22 (Software)." Professional Geographer, vol. 40, no. 4, Nov88, p. 470.
Precaución: Estas citas no son 100% exactas.