-Cancela, M. C. (2006). Time-activity budgets and behaviour of the Amazilia hummingbird, Amazilia amazilia (Apodiformes: Trochilidae) in an urban environment. Universidad de Costa Rica.
Chicago Style (17th ed.) Citation-Cancela, M. Calviño. Time-activity Budgets and Behaviour of the Amazilia Hummingbird, Amazilia Amazilia (Apodiformes: Trochilidae) in an Urban Environment. Universidad de Costa Rica, 2006.
MLA (9th ed.) Citation-Cancela, M. Calviño. Time-activity Budgets and Behaviour of the Amazilia Hummingbird, Amazilia Amazilia (Apodiformes: Trochilidae) in an Urban Environment. Universidad de Costa Rica, 2006.
Warning: These citations may not always be 100% accurate.