APA-referens (7:e uppl.)

Harlan, J. D. (1992). Science experiences for the early childhood years (5th ed.). Macmillan.

Chicago-referens (17:e uppl.)

Harlan, Jean Durgin. Science Experiences for the Early Childhood Years. 5th ed. New York: Macmillan, 1992.

MLA-referens (9:e uppl.)

Harlan, Jean Durgin. Science Experiences for the Early Childhood Years. 5th ed. Macmillan, 1992.