APA

Walcott G. N., Otero J. I., . (1936). "Insectae Breonquenses": a revised, annotated chek-list of the insects. Río Piedras, P.R: .

Chicago

Walcott George N, Otero José I, . 1936. "Insectae Breonquenses": a revised, annotated chek-list of the insects. Río Piedras, P.R: .

Harvard

Walcott G. N., Otero J. I., . (1936). "Insectae Breonquenses": a revised, annotated chek-list of the insects. Río Piedras, P.R: .

MLA

Walcott George N, Otero José I, . "Insectae Breonquenses": a revised, annotated chek-list of the insects. Río Piedras, P.R: . 1936.