APA-referens (7:e uppl.)

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

Chicago-referens (17:e uppl.)

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

MLA-referens (9:e uppl.)

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