The tragedy of King Richard the Second.
Edited by Robert T. Petersson.

APA Citation

Shakespeare, W., Petersson, R. Torsten. (1957). The tragedy of King Richard the Second. [Rev. ed.] New Haven: Yale University Press.

MLA Citation

Shakespeare, William, 1564-1616, and Robert Torsten Petersson. The Tragedy of King Richard the Second. [Rev. ed.] New Haven: Yale University Press, 1957.

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