APA

Cuervo A. M., Stiles F. G., Lentino M., Brumfield R. T. & Derryberry E. P. (20160706). Geographic variation and phylogenetic relationships of Myiopagis olallai (Aves: Passeriformes; Tyrannidae), with the description of two new taxa from the Northern Andes. : Zootaxa.

Chicago

Cuervo Andrés M, Stiles F Gary, Lentino Miguel, Brumfield Robb T and Derryberry Elizabeth P. 20160706. Geographic variation and phylogenetic relationships of Myiopagis olallai (Aves: Passeriformes; Tyrannidae), with the description of two new taxa from the Northern Andes. : Zootaxa.

Harvard

Cuervo A. M., Stiles F. G., Lentino M., Brumfield R. T. and Derryberry E. P. (20160706). Geographic variation and phylogenetic relationships of Myiopagis olallai (Aves: Passeriformes; Tyrannidae), with the description of two new taxa from the Northern Andes. : Zootaxa.

MLA

Cuervo Andrés M, Stiles F Gary, Lentino Miguel, Brumfield Robb T and Derryberry Elizabeth P. Geographic variation and phylogenetic relationships of Myiopagis olallai (Aves: Passeriformes; Tyrannidae), with the description of two new taxa from the Northern Andes. : Zootaxa. 20160706.