1. “The Guinea Pig or Domestic Cavy, for Food, Fur, and Fancy.”;Cumberland,1886
2. Detlefsen, J.A. (1914). Genetic studies on a cavy species cross. Carnegie Inst. Wash. Publ. 205.
3. Comparative biometric study of albino and coloured guinea-pigs from the point of view of their stability for experimental use;Dunkin;J. Hyg.,1930
4. The families and genera of living rodents;Ellerman;Brit. Mus. Natur. Hist.,1940
5. “Cavies or Guinea Pigs.”;Gardner,1913