@inbook{richardson_zicker_2000, title={Developmental orthopedic disease of dogs}, ISBN={0721672566}, booktitle={Textbook of veterinary internal medicine : diseases of the dog and cat (5th Ed.)}, publisher={Philadelphia, PA : W.B. Saunders}, author={Richardson, D. C. and Zicker, S. C.}, year={2000}, pages={245} }