Παραπομπή σε μορφή APA (7η εκδ.)

Delmar & Essa, E. (1999). A practical guide to solving preschool behavior problems (4th ed.). Delmar Publishers.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Delmar και Eva Essa. A Practical Guide to Solving Preschool Behavior Problems. 4th ed. Albany, N.Y.: Delmar Publishers, 1999.

Παραπομπή σε μορφή MLA (8th εκδ.)

Delmar και Eva Essa. A Practical Guide to Solving Preschool Behavior Problems. 4th ed. Delmar Publishers, 1999.