Cita APA

Willcutt, R. E., Spikell, M. A., & Greenes, C. E. (1974). Multibase activities. Creative Publications.

Citación estilo Chicago

Willcutt, Robert E., Mark A. Spikell, and Carole E. Greenes. Multibase Activities. Palo Alto, Ca.: Creative Publications, 1974.

Cita MLA

Willcutt, Robert E., et al. Multibase Activities. Creative Publications, 1974.