RT Book, Whole DB /z-wcorg/ DS http://worldcat.org ID 3120999 LA English T1 Toilet learning : the picture book technique for children and parents A1 Mack, Alison., Phillips, George C., PB Little, Brown PP Boston YR 1978 SN 0316542334 9780316542333 0316542377 9780316542371 AB Includes separate discussions for parents and children about the whys and hows of using the toilet.