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Creator Personal Names
Leach, J. G. (Julian Gilbert), b. 1894.
Remove constraint Creator Personal Names: Leach, J. G. (Julian Gilbert), b. 1894.
Creator Personal Names
True, R. P. (Rodney Philip), 1906-
Remove constraint Creator Personal Names: True, R. P. (Rodney Philip), 1906-
All Creators
Jewell, Frederick F.
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Subject Topical
Plant spores.
Remove constraint Subject Topical: Plant spores.
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