The Way It Wasn't: From the Files of James Laughlin
(New York: New Directions, 2006), p. 36 (under the heading "Brown University"):
My students range from tops to, well, what do you think of this little miss, who ended her paper: "We cannot say that Pound's 'Mauberley' is a work of art because he writes about so many people in Greece and Rome who nobody knows anything about any more. Pound could not have written this poem without Froula's guide."
"Froula's guide" = Christine Froula, A Guide to Ezra Pound's Selected Poems
(New York: New Directions, 1983)!