The Morgan Library's copy of Paul Muldoon's  Unapproved Road,  including the press's archive.

The Morgan Library's copy of Paul Muldoon's Unapproved Road, including the press's archive.

PIED OXEN’S publications are in the special collections of the following institutions: 

Bainbridge Island Museum of Art Beloit College Library
Biblioteca Nacional de España-Madrid
The British Library, St. Pancras
Brown University Library
Cambridge University Library
Cornell University Library
Duke University Library
Emory University Library, Robert W. Woodruff Library
Harvard University – Houghton Library
Harvard University – Harvard College Library
Indiana University
Kent State University
Lafayette College Library
Library of Congress, Rare Books and Special Collections
Morgan Library and Museum, Pierpont Morgan Library
National Library of Ireland
New Mexico State University
New York Public Library
Princeton University
Reed College Library
Rutgers University
Smith College, Nelson Library
St. Lawrence University, Owen D. Young Library St. Olaf College Libraries-Rolvaag Library
Stanford University Libraries
State University of New York at Buffalo-The Poetry Collection
Swarthmore College, McCabe Libraries
Temple University Libraries
University of Arizona Libraries
University of California, Berkeley Libraries
University of California, Davis, Shields Library
University of California, San Diego
University of California, Santa Cruz University of Colorado Libraries
University of Delaware Library, Hugh M. Morris Library
University of North Carolina at Chapel Hill
University of Notre Dame, Hesburgh Library University of Pennsylvania Libraries, Kislak Center for Special Collections
University of Texas at Austin, Harry Ransom Humanities Research Center
University of Virginia Library University of Wisconsin, Memorial Library
Wellesley College
Western Michigan University, Dwight B. Waldo Library
Yale University Library