"The first edition of this manual was developed as a part of the work of the Cornell Research Program in Early Childhood Education, a part of the National Laboratory on Early Childhood Education, sponsored by the U.S. Office of Education. The earliest states of the project were funded by a special research grant from the Cornell College of Home Economics Research Committee."

"This work was developed under contracts with the U.S. Office of Education and the National Institute of Education, Department of Health, Education and Welfare."

Includes bibliographies and index.