Cita APA (7a ed.)
Fritschel, H. (2012). Crowd cartography. International Food Policy Research Institute.
Cita Chicago Style (17a ed.)
Fritschel, Heidi. Crowd Cartography. International Food Policy Research Institute, 2012.
Cita MLA (9a ed.)
Fritschel, Heidi. Crowd Cartography. International Food Policy Research Institute, 2012.
Precaución: Estas citas no son 100% exactas.