APA

Scales B., . (1991). Play and the social context of development in early care and education. New York: Teachers College, Columbia University.

Chicago

Scales Barbara, . 1991. Play and the social context of development in early care and education. New York: Teachers College, Columbia University.

Harvard

Scales B., . (1991). Play and the social context of development in early care and education. New York: Teachers College, Columbia University.

MLA

Scales Barbara, . Play and the social context of development in early care and education. New York: Teachers College, Columbia University. 1991.