Ziff, William B. Box 343 Rare Book & Manuscript Library Harper & Row Publishers records, 1935-1973Series X: Photographs
Ziff, William B. Box 349 Rare Book & Manuscript Library Harper & Row Publishers records, 1935-1973Series XI: Photographs and Illustrations Negatives
Zilinsky, Ursula Box 182 Rare Book & Manuscript Library Harper & Row Publishers records, 1935-1973Series III: Arranged SeriesSubseries III.4: Editorial Files
Zimmerman, J. E. Box 343 Rare Book & Manuscript Library Harper & Row Publishers records, 1935-1973Series X: Photographs
Zinsser, Bill & Stevenson, James Box 343 Rare Book & Manuscript Library Harper & Row Publishers records, 1935-1973Series X: Photographs
Z Misc , [n.p.], 1959-64 Box 44 Rare Book & Manuscript Library Harper & Row Publishers records, 1935-1973Series III: Arranged SeriesSubseries III.1: Trade Department Files
Zolotow, Charlotte Box 182 Rare Book & Manuscript Library Harper & Row Publishers records, 1935-1973Series III: Arranged SeriesSubseries III.4: Editorial Files
Zolotow, Charlotte Box 279 Rare Book & Manuscript Library Harper & Row Publishers records, 1935-1973Series VI: Copyright Renewals, Contracts and Rights Reversions
Zolotow, Charlotte & Mary Box 279 Rare Book & Manuscript Library Harper & Row Publishers records, 1935-1973Series VI: Copyright Renewals, Contracts and Rights Reversions
Zuckerman, Sir Solly Box 349 Rare Book & Manuscript Library Harper & Row Publishers records, 1935-1973Series XI: Photographs and Illustrations Negatives