Cita APA

Flood, J., & Lapp, D. (1989). Observing. New York: Macmillan Publishing Company.

Chicago Style Citation

Flood, James., i Diane Lapp. Observing. New York: Macmillan Publishing Company, 1989.

Cita MLA

Flood, James., i Diane Lapp. Observing. New York: Macmillan Publishing Company, 1989.

Atenció: Aquestes cites poden no estar 100% correctes.