TY  - BOOK
AU  - Wallin, Ivan E.
TI  - Symbioticism and the origin of species
U1  - 575.9 
PY  - 1927///
CY  - London
PB  - Bailliere Tindall and Cox
KW  - Origin of species
KW  - Genetics
KW  - Speciation
N1  - Includes bibliographical references and index
ER  -