APA (7th ed.) Citation

Boynton, P. H. (1970). The rediscovery of the frontier (Orig. publ. 1931.). Cooper Square Publ.

Chicago Style (17th ed.) Citation

Boynton, Percy Holmes. The Rediscovery of the Frontier. Orig. publ. 1931. New York: Cooper Square Publ, 1970.

MLA (9th ed.) Citation

Boynton, Percy Holmes. The Rediscovery of the Frontier. Orig. publ. 1931. Cooper Square Publ, 1970.

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