APA

Hildebrand V., . (1971). Introduction to early childhood education. New York: MacMillan.

Chicago

Hildebrand Verna, . 1971. Introduction to early childhood education. New York: MacMillan.

Harvard

Hildebrand V., . (1971). Introduction to early childhood education. New York: MacMillan.

MLA

Hildebrand Verna, . Introduction to early childhood education. New York: MacMillan. 1971.