The history of England during the thirty years' peace: 1816-1846.
By Harriet Martineau.

APA Citation

Martineau, H., Knight, C. (184950). The history of England during the thirty years' peace: 1816-1846. London: C. Knight.

MLA Citation

Martineau, Harriet, 1802-1876, and Charles Knight. The History of England During the Thirty Years' Peace: 1816-1846. London: C. Knight, 184950.

Warning: These citations may not always be complete (especially for serials).