González-García, F., Contreras Reyes, A., & Straub, R. (2009). First documented record of Crimson-Collared Grosbeak (Rhodothraupis Celaeno) from Central Veracruz, Mexico. Instituto de Ecología, A.C.
Čikaški stil citiranja (17. izdanje)González-García, Fernando, Aldo Contreras Reyes, i Robert Straub. First Documented Record of Crimson-Collared Grosbeak (Rhodothraupis Celaeno) from Central Veracruz, Mexico. Instituto de Ecología, A.C, 2009.
MLA način citiranja (9. izdanje)González-García, Fernando, et al. First Documented Record of Crimson-Collared Grosbeak (Rhodothraupis Celaeno) from Central Veracruz, Mexico. Instituto de Ecología, A.C, 2009.
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