APA ציטוט

(1999). Research maps (R-maps) HUD/PD&R policy and research data for use with GIS. [electronic resource].

Chicago Style (17th ed.) Citation

Research Maps (R-maps) HUD/PD&R Policy and Research Data for Use with GIS. [electronic Resource]. 1999.

ציטוט MLA

Research Maps (R-maps) HUD/PD&R Policy and Research Data for Use with GIS. [electronic Resource]. 1999.