Title: How to teach your baby math
First published: 1991
Subjects: Study and teaching (Preschool), Infants, Mathematics, Niños lactantes, Enseñanza preescolar, Matemáticas, Mathematics, study and teaching (preschool), Mathématiques, Étude et enseignement (Préscolaire), Yu er, Qin zhi jiao yu, Infant psychology, Child rearing