TY  - GEN
AU  - Sonneborn,T.M.
AU  - Schneller,Myrtle
TI  - Are there cumulative effects of parental age transmissible through sexual reproduction in variety 4 of Paramecium aurelia?: (Abstract) 
PY  - 1955///
CY  - [S.l.
PB  - s.n.]
ER  -