Horn, S. P., & Rodgers, J. C. (1996). The northern limit of Alnus (Fagales) in Costa Rica: Modern pollen evidence of a possible range extension.
Style de citation ChicagoHorn, Sally P., et John C. Rodgers. The Northern Limit of Alnus (Fagales) in Costa Rica: Modern Pollen Evidence of a Possible Range Extension. 1996.
Style de citation MLAHorn, Sally P., et John C. Rodgers. The Northern Limit of Alnus (Fagales) in Costa Rica: Modern Pollen Evidence of a Possible Range Extension. 1996.
Attention : ces citations peuvent ne pas être correctes à 100%.