APA (7th ed.) Citation

(1939). Portuguese simplified.: An easy and rapid self-instructor (Standard ed., rev. and re-written.). David McKay co..

Chicago Style (17th ed.) Citation

Portuguese Simplified.: An Easy and Rapid Self-instructor. Standard ed., rev. and re-written. New York: David McKay co., 1939.

MLA (9th ed.) Citation

Portuguese Simplified.: An Easy and Rapid Self-instructor. Standard ed., rev. and re-written. David McKay co., 1939.