References
- DOHERTY, T. (1974) The Anatomical Work of George Stubbs, Secker and Warburg, London
- FINLAY, G.F. (1925) Studies on sex differentiation in fowl. Journal of Experimental Biology 2: 439–468
- THORNTON, J.L. (1982) Jan van Rymsdyk, Medical Artist of the Eighteenth Century, Oleander Press, Cambridge