APA (7th ed.) Citation

Belchem, J., & Price, R. (1996). The Penguin dictionary of nineteenth century history. Penguin.

Chicago Style (17th ed.) Citation

Belchem, John, and Richard Price. The Penguin Dictionary of Nineteenth Century History. London: Penguin, 1996.

MLA (9th ed.) Citation

Belchem, John, and Richard Price. The Penguin Dictionary of Nineteenth Century History. Penguin, 1996.