Mammals of Northern Colombia, Preliminary Report No. 6: Rabbits (Leporidae), with Notes on the Classification and Distribution of the South American Forms
Mammals of Northern Colombia, preliminary report no. 8 : arboreal rice rats, a systematic revision of the subgenus Oecomys, genus Oryzomys / by Philip Hershkovitz
Mammals of northern Colombia, preliminary report no.6 : rabbits (Leporidae), with notes on the classification and distribution of the South American forms / by Philip Hershkovitz