Cita APA

Sparks, F. W. n. 1., & Underwood, R. S. n. 1. (1949). Living mathematics (2. edition.). New York, New York: McGraw-Hill.

Citación estilo Chicago

Sparks, Fred Winchell n. 1891, y Ralph Sylvester n. 1891 Underwood. Living Mathematics. 2. edition. New York, New York: McGraw-Hill, 1949.

Cita MLA

Sparks, Fred Winchell n. 1891, y Ralph Sylvester n. 1891 Underwood. Living Mathematics. 2. edition. New York, New York: McGraw-Hill, 1949.