APA Citation

Ellis, F. L., & Ellis, F. L. (1939). Rapid addition. Chicago: Jacobus.

Chicago Style Citation

Ellis, Fenwick L., and Fenwick L. Ellis. Rapid Addition. Chicago: Jacobus, 1939.

MLA Citation

Ellis, Fenwick L., and Fenwick L. Ellis. Rapid Addition. Chicago: Jacobus, 1939.

Warning: These citations may not always be 100% accurate.