APA (7th ed.) Citation

Cowper, W., King, J., & Ryskamp, C. (1989). William Cowper : selected letters / edited by James King and Charles Ryskamp: Selected letters. Clarendon.

Chicago Style (17th ed.) Citation

Cowper, William, James King, and Charles Ryskamp. William Cowper : Selected Letters / Edited by James King and Charles Ryskamp: Selected Letters. Oxford: Clarendon, 1989.

MLA (9th ed.) Citation

Cowper, William, et al. William Cowper : Selected Letters / Edited by James King and Charles Ryskamp: Selected Letters. Clarendon, 1989.

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