Cita APA

Dilson, J., & Dilson, J. (1968). The abacus: A pocket computer. New York, New York: St. Martin's.

Citación estilo Chicago

Dilson, Jesse, y Jesse Dilson. The Abacus: A Pocket Computer. New York, New York: St. Martin's, 1968.

Cita MLA

Dilson, Jesse, y Jesse Dilson. The Abacus: A Pocket Computer. New York, New York: St. Martin's, 1968.