Duncan, Robert Edward, 1919- Duncan, Robert Edward, 1919- The opening of the field [by] Robert Duncan. - London, Cape, 1969. Poems. ISBN: 0224616277 25/- LCCN: 75455020 Nat. Bib. No.: B69-23575 LC Class. No.: PS3507.U629 / O6 1969 Dewey Class. No.: 811/.5/4