Keulemans, John Gera A Monograph of the Capitonidæ, or Scansorial Barbets

Keulemans, John Gerrard A Natural History of Cage Birds

Keulemans, John Gerrard A Natural History of Cage Birds

Mivart, St George Jackson Dogs, Jackals, Wolves, and Foxes: A Monograph of the Canidae. With Woodcuts, and 45 Coloured Plates Drawn From Nature by J.G. Keulemans and Hand-coloured

Keulemans, John Gerrard A Natural History of Cage Birds