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- a44005339 contributor B12847366.
- a44005339 created "[1944]".
- a44005339 date "1944".
- a44005339 date "[1944]".
- a44005339 dateCopyrighted "[1944]".
- a44005339 description "Thesis (Ph. D.)--University of Pennsylvania, 1943.".
- a44005339 extent "11-59 p. incl. illus. (incl. map) 5 pl., tables.".
- a44005339 issued "1944".
- a44005339 issued "[1944]".
- a44005339 language "eng".
- a44005339 publisher "Philadelphia, Pa., Press of the Wistar institute of anatomy and biology".
- a44005339 subject "575.225".
- a44005339 subject "Chromosomes.".
- a44005339 subject "Genetics.".
- a44005339 subject "QH431 .C254".
- a44005339 subject "Sciara impatiens.".
- a44005339 title "An analysis of natural chromosome variability in Sciara impatiens Johannsen.".
- a44005339 type "text".