APA-viite

Roberts, D. L. (2007). Effects of tropical forest fragmentation on ecology and conservation of migrant and resident birds in lowland Costa Rica.

Chicago-tyylinen lähdeviittaus

Roberts, Dina L. Effects of Tropical Forest Fragmentation On Ecology and Conservation of Migrant and Resident Birds in Lowland Costa Rica. 2007.

MLA-viite

Roberts, Dina L. Effects of Tropical Forest Fragmentation On Ecology and Conservation of Migrant and Resident Birds in Lowland Costa Rica. 2007.

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