Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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