TY - BOOK AU - Dobzhansky, Theodosius. AU - Epling, Carl. TI - Contribution to the genetics, taxonomy and ecology of drosophila pseudoobscura and its relatives T2 - Pub. 554 U1 - 595.772 PY - 1944/// CY - Washington PB - Carnegei Institution KW - Drosophila ER -