Cita APA

Bowers, H., & Bowers, J. E. (1961). Arithmetical excursions.

Citación estilo Chicago

Bowers, Henry, y Joan E. Bowers. Arithmetical Excursions. 1961.

Cita MLA

Bowers, Henry, y Joan E. Bowers. Arithmetical Excursions. 1961.