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2011. Letter from Leon A. Heppel to Maxine Singer

Publication:
Produced: [14 July 1958]
Archival Collection:
The Maxine Singer Papers (Profiles in Science)

2012. Letter from Leon A. Heppel to Maxine Singer

Publication:
Produced: [5 June 1971]
Archival Collection:
The Maxine Singer Papers (Profiles in Science)

2013. Letter from Leon A. Heppel to Maxine Singer

Publication:
Produced: [3 June 1974]
Archival Collection:
The Maxine Singer Papers (Profiles in Science)

2014. Letter from Leon A. Heppel to Maxine Singer

Publication:
Produced: [13 December 1974]
Archival Collection:
The Maxine Singer Papers (Profiles in Science)

2015. Letter from Leon A. Heppel to Maxine Singer

Publication:
Produced: 21 March 1977
Archival Collection:
The Maxine Singer Papers (Profiles in Science)

2016. Letter from Leon A. Heppel to Maxine Singer

Publication:
Produced: 5 December 1985
Archival Collection:
The Maxine Singer Papers (Profiles in Science)

2017. Letter from Maxine Singer to Leon A. Heppel

Publication:
Produced: 6 January 1986
Archival Collection:
The Maxine Singer Papers (Profiles in Science)

2018. Letter from Debi P. Burma to Maxine Singer

Publication:
Produced: 12 August 1970
Subject(s):
Enzymes
Archival Collection:
The Maxine Singer Papers (Profiles in Science)

2020. Letter from Leon A. Heppel to Maxine Singer

Publication:
Produced: 9 March 1988
Archival Collection:
The Maxine Singer Papers (Profiles in Science)