Gaya APA

Yawkey, J, E, J, J, F, C, A, T, D. (1999). PLAY AND EARLY CHILDHOOD DEVELOPMENT (Ed. 2). New York: Addison Wesley Longman, Inc..

Gaya MLA

Yawkey, James, E., Johnson,, James, F., Christie, And, Thomas, D.. "PLAY AND EARLY CHILDHOOD DEVELOPMENT". Ed. 2 New York: Addison Wesley Longman, Inc., 1999. Text.