An ancient castle /
Robert Graves ; illustrated by Elizabeth Graves ; with an afterword by William David Thomas.

APA Citation

Graves, R., Thomas, W. David., Graves, E. (1980). An ancient castle. London: P. Owen.

MLA Citation

Graves, Robert, 1895-1985, William David Thomas, and Elizabeth Graves. An Ancient Castle. London: P. Owen, 1980.

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