Cita APA

Horn, S. P. The northern limit of Alnus (Fagales) in Costa Rica: Modern pollen evidence of a possible range extension.

Citación estilo Chicago

Horn, Sally P. The Northern Limit of Alnus (Fagales) in Costa Rica: Modern Pollen Evidence of a Possible Range Extension.

Cita MLA

Horn, Sally P. The Northern Limit of Alnus (Fagales) in Costa Rica: Modern Pollen Evidence of a Possible Range Extension.