Hilje, L. (2017). Adelaida Chaverri: The First Costa Rican Naturalist and Conservationist.
Dyfyniad Arddull ChicagoHilje, Luko. Adelaida Chaverri: The First Costa Rican Naturalist and Conservationist. 2017.
Dyfyniad MLAHilje, Luko. Adelaida Chaverri: The First Costa Rican Naturalist and Conservationist. 2017.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.