TY  - GEN
AU  - Sonneborn,T.M.
AU  - Lynch,Ruth Stocking
TI  - Factors determining conjugation in Paramecium aurelia: III. A genetic factor: the origin at endomixis of genetic diversities 
PY  - 1937///
CY  - [S.l. : 
PB  - s.n.], 
ER  -