APA (7th ed.) Citation

Post, J. D. (1977). The last great subsistence crisis in the Western World. Johns Hopkins University Press.

Chicago Style (17th ed.) Citation

Post, John D. The Last Great Subsistence Crisis in the Western World. Baltimore: Johns Hopkins University Press, 1977.

MLA (9th ed.) Citation

Post, John D. The Last Great Subsistence Crisis in the Western World. Johns Hopkins University Press, 1977.