Cita APA

Carin, A. A., & Sund, R. B. (1989). Guided discovery activities for elementary school science (2nd ed.). Merrill.

Citación estilo Chicago

Carin, Arthur A., and Robert B. Sund. Guided Discovery Activities for Elementary School Science. 2nd ed. Columbus, Ohio: Merrill, 1989.

Cita MLA

Carin, Arthur A., and Robert B. Sund. Guided Discovery Activities for Elementary School Science. 2nd ed. Merrill, 1989.