Cita APA (7a ed.)

Betts, E. A., & Welch, C. M. (1963). The ABC American adventures (Teacher's edition, annotated and keyed.). American Book Company.

Cita Chicago Style (17a ed.)

Betts, Emmett A., y Carolyn M. Welch. The ABC American Adventures. Teacher's edition, annotated and keyed. New York ; a Cincinnati ; Chicago ; Atlanta ; Dallas ; Millbrae: American Book Company, 1963.

Cita MLA (8a ed.)

Betts, Emmett A., y Carolyn M. Welch. The ABC American Adventures. Teacher's edition, annotated and keyed. American Book Company, 1963.