APA-viite

Cornwell, E. (2014). Effects of different agricultural systems on soil quality in Northern Limón province, Costa Rica.

Chicago-tyylinen lähdeviittaus

Cornwell, Emma. Effects of Different Agricultural Systems On Soil Quality in Northern Limón Province, Costa Rica. 2014.

MLA-viite

Cornwell, Emma. Effects of Different Agricultural Systems On Soil Quality in Northern Limón Province, Costa Rica. 2014.

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