Toledo, Victor M. 1991. ?Pátzcuaro's Lesson: Nature, Production, And Culture In An Indigenous Region Of Mexico?. In Biodiversity: Culture, Conservation, And Ecodevelopment, 147-171. Boulder, CO: Westview Press. http://www.worldcat.org/oclc/24467584.

Niamir, Maryam. 1990. ?Traditional Woodland Management Techniques Of African Pastoralists?. Unasylva 160 (41): 49-58. http://www.fao.org/3/t7750e/t7750e08.htm#traditional%20woodland%20management%20techniques%20of%20african%20pastoralists.