Cita APA (7a ed.)

Tolman, M. N., & Hardy, G. R. (1995). Discovering elementary science: Method, content, and problem-solving activities. Allyn and Bacon.

Cita Chicago Style (17a ed.)

Tolman, Marvin N., y Garry R. Hardy. Discovering Elementary Science: Method, Content, and Problem-solving Activities. Boston: Allyn and Bacon, 1995.

Cita MLA (9a ed.)

Tolman, Marvin N., y Garry R. Hardy. Discovering Elementary Science: Method, Content, and Problem-solving Activities. Allyn and Bacon, 1995.