Improve Their Welfare on Asian Farms. Csiro Publishing. pp. 20–21. ISBN 978-1-4863-0162-1. McKenna, C. (2001). "The case against the veal crate: An examination...
Behaviour to Improve Their Welfare on Asian Farms. Csiro Publishing. ISBN 978-1-4863-0162-1. Archived from the original on 29 July 2020. Retrieved 5 April 2017...