Straw-flow : a high welfare system for pigs : a final report to the Royal Society for the Prevention of Cruelty to Animals /
Bruce, J. M.,author.
Arey, D.,author.
Pearce, C. A.,author.
Centre for Rural Building.Library,former owner.StEdNL
"October, 1992."
Ink stamp on title page and page [2]: C.R.B. Library, Craibstone, Bucksburn, Aberdeen. Withdrawn.