Nicolas, G. (2004). Variation in the behavioral responses of Budgerigars Melopsittacus undulatus to an alarm call in relation to sex and season. Academia Brasileira de Ciências.
Citazione stile Chigago Style (17a edizione)Nicolas, Gérard. Variation in the Behavioral Responses of Budgerigars Melopsittacus Undulatus to an Alarm Call in Relation to Sex and Season. Academia Brasileira de Ciências, 2004.
Citatione MLA (9a ed.)Nicolas, Gérard. Variation in the Behavioral Responses of Budgerigars Melopsittacus Undulatus to an Alarm Call in Relation to Sex and Season. Academia Brasileira de Ciências, 2004.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.