Robison, Helen F, Exploring teaching in early childhood education /Helen F. Robison. - second edition. - Boston : Allyn and Bacon, (c)1983. - xvi, 496 pages : illustrations ; 24 cm. LCCN: 82016405 Subjects--Topical Terms: Education, Preschool. LC Class. No.: LB1140 / .E975 1983