MLA

Carlyle, Thomas, 1795-1881. Carlyle, Thomas, Oliver Cromwell's Letters and Speeches, London: Chapman and Hall, Volume 1. Box 10. 1850. https://collections.library.yale.edu/catalog/2007490.

APA, 6th edition

Carlyle, Thomas, 1795-1881. (["Box 10"])(1850)[Carlyle, Thomas, Oliver Cromwell's Letters and Speeches, London: Chapman and Hall, Volume 1]. https://collections.library.yale.edu/catalog/2007490.