APA-viite

Kampen, P. (1996). Trees in grassland: The influence of trees on grass production within sylvopastoral systems of the Atlantic Zone of Costa Rica.

Chicago-tyylinen lähdeviittaus

Kampen, P. Trees in Grassland: The Influence of Trees On Grass Production Within Sylvopastoral Systems of the Atlantic Zone of Costa Rica. 1996.

MLA-viite

Kampen, P. Trees in Grassland: The Influence of Trees On Grass Production Within Sylvopastoral Systems of the Atlantic Zone of Costa Rica. 1996.

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