http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
a centenary tribute to William Butler Yeats, 1865-1939
Edited by A. Norman Jeffares and K. G. W. Cross.
"The fascination of what's difficult; a survey of Yeats criticism and research [by] K. G. W. Cross": pages 315-337.