Cita APA

Snell, F. D., & Snell, C. T. (1948). Theory - Instruments (3. ed.). New York: D. Van Nostrand.

Citación estilo Chicago

Snell, Foster Dee, and Cornelia T. Snell. Theory - Instruments. 3. ed. New York: D. Van Nostrand, 1948.

Cita MLA

Snell, Foster Dee, and Cornelia T. Snell. Theory - Instruments. 3. ed. New York: D. Van Nostrand, 1948.