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Filters: Keyword is swiddens and Author is Norman Edward Kowal [Clear All Filters]
1966
“Shifting Cultivation, Fire, And Pine Forest In The Cordillera Central, Luzon, Philippines”. Ecological Monographs 36 (4): 389-419. doi:10.2307/1942374. http://www.jstor.org/stable/1942374.
. 1966.