APA

Jones J. K., Genoways H. H., .Distribution of the porcupine, Erethizon dorsatum, in Mexico. : .

Chicago

Jones J Knox, Genoways Hugh H, .Distribution of the porcupine, Erethizon dorsatum, in Mexico. : .

Harvard

Jones J. K., Genoways H. H., .Distribution of the porcupine, Erethizon dorsatum, in Mexico. : .

MLA

Jones J Knox, Genoways Hugh H, .: . .