Letter from Leon A. Heppel to Maxine Singer Letter from Leon A. Heppel to Maxine Singer

Contributor(s): Singer, Maxine Library of Congress. Maxine Singer Papers Heppel, Leon A. Publication: Produced: [2 June 1968?] Language(s): English Format: Text Genre(s): Archival Materials Letters (correspondence) Copyright: This item may be under copyright protection; contact the copyright owner for permission before re-use. Extent: 4 pages NLM Unique ID: 101584644X23 (See in Profiles in Science) Profiles in Science ID: DJBBCD Permanent Link: http://resource.nlm.nih.gov/101584644X23 Archival Collection: The Maxine Singer Papers (Profiles in Science)