- The Cruising Guide to the New England Coast: Including the Hudson River, Long Island Sound, and the Coast of New Brunswick, Twelfth Edition by Robert C. Duncan, Roger S. Duncan, et all 2002-08-26
- Robert Duncan in San Francisco by Michael Rumaker, 2001-01-01
- A Great Admiration: H.D./Robert Duncan Correspondence 1950-1961
- A Selected Prose by Robert Edward Duncan, 1995-03
- The Great Scot: A Novel of Robert the Bruce, Scotland's Legendary Warrior King by Duncan A. Bruce, 2006-07-25
- The Unruly Garden: Robert Duncan and Eric Mottram, Letters and Essays (American Studies: Culture, Society & the Arts)
- The Great Scot: A Novel of Robert the Bruce, Scotland's Legendary Warrior King by Duncan A. Bruce, 2006-07-25
- A Greater Commission: A Theology for World Missions by Robert Duncan Culver, 1984-01
- Young Robert Duncan: Portrait of the Poet as Homosexual in Society by Ekbert Faas, 1984-02-01
- Archives of China's Imperial Maritime Customs: v. 4: Confidential Correspondence Between Robert Hart and James Duncan by Robert Hart, James Duncan, 1993-02
- Robert Duncan Selected Poems by Robert Duncan, 1959
- Robert Duncan (Twayne's United States Authors Series) by Mark Andrew Johnson, 1988-01
- Robert Creeley, Edward Dorn, and Robert Duncan: A Reference Guide (Reference Publication in Literature) by Willard Fox, 1989-01
- Robert Duncan: A Descriptive Bibliography by Robert J. Bertholf, 1986-12
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