Parque Nacional do Grand Canyon (Portuguese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Parque Nacional do Grand Canyon" in Portuguese language version.

refsWebsite

Global rank Portuguese rank

135^th place

235^th place

nps.gov

Anderson, Michael F. «Polishing the Jewel: An Administrative History of Grand Canyon National Park» (PDF). Grand Canyon Association. Consultado em 7 de dezembro de 2015
Pryputniewicz, Vanya; Peterson, Peter. «Grand Canyon National Park Presents Living History Performance of President Theodore Roosevelt». nps.gov. Consultado em 27 de fevereiro de 2015