APA (7th ed.) Citation

Hilton, J. B. (1990). The green frontier. William Collins.

Chicago Style (17th ed.) Citation

Hilton, John Buxton. The Green Frontier. London: William Collins, 1990.

MLA (9th ed.) Citation

Hilton, John Buxton. The Green Frontier. William Collins, 1990.

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