Avalos, G., Soto, A., & Alfaro, W. (2012). Effect of artificial feeders on pollen loads of the hummingbirds of Cerro de La Muerte, Costa Rica.
Citación estilo ChicagoAvalos, Gerardo, Alejandra Soto, y Willy Alfaro. Effect of Artificial Feeders On Pollen Loads of the Hummingbirds of Cerro De La Muerte, Costa Rica. 2012.
MLA引文Avalos, Gerardo, Alejandra Soto, y Willy Alfaro. Effect of Artificial Feeders On Pollen Loads of the Hummingbirds of Cerro De La Muerte, Costa Rica. 2012.
警告：這些引文格式不一定是100％准確.