Cita APA (7th ed.)

Essa, E. (1999). Introduction to early childhood education (3rd ed.). Delmar.

Cita Chicago (17th ed.)

Essa, Eva. Introduction to Early Childhood Education. 3rd ed. Albany, N.Y: Delmar, 1999.

Cita MLA (9th ed.)

Essa, Eva. Introduction to Early Childhood Education. 3rd ed. Delmar, 1999.