Lua APA (7ú heag.)

Peterson, G. (2012). Cartographer's Toolkit: Colers, Typography, Patterns. PetersonGIS.

Lua i Stíl Chicago (17ú heag.)

Peterson, Gretchen. Cartographer's Toolkit: Colers, Typography, Patterns. Fort Collins, Colo.: PetersonGIS, 2012.

Lua MLA (8ú heag.)

Peterson, Gretchen. Cartographer's Toolkit: Colers, Typography, Patterns. PetersonGIS, 2012.

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