TY  - BOOK
AU  - Smith,Esther L.
AU  - Hay,William Howard
TI  - Mother and child: The official Hay system book on the pre-natal care of the mother, and the care, feeding and training of children
AV  - RJ61 .S636 1947
PY  - 1947///]
CY  - Mount Pocono, Pa.
PB  - Hay system publications
N1  - A new edition of The Hay system of child development, by William H. Hay and Esther L. Smith
ER  -