APA (7th ed.) Citation

(1972). The forgotten frontier. Holt, Rinehart and Winston.

Chicago Style (17th ed.) Citation

The Forgotten Frontier. Holt, Rinehart and Winston, 1972.

MLA (8th ed.) Citation

The Forgotten Frontier. Holt, Rinehart and Winston, 1972.

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