Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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