Cita APA

Ruddell, R. B., Adams, P. J., & Taylor, M. (1978). Upside and down. Allyn and Bacon.

Citación estilo Chicago

Ruddell, Robert B., Phyllis J. Adams, and Mark Taylor. Upside and Down. Boston: Allyn and Bacon, 1978.

Cita MLA

Ruddell, Robert B., et al. Upside and Down. Allyn and Bacon, 1978.