TY  - BOOK
AU  - Lull,Richard Swann
TI  - Organic evolution
AV  - QH366 .L9
U1  - 591 
PY  - 1957///
CY  - New York
PB  - The Macmillan company
KW  - Evolution (Biology)
N1  - "References" at end of each chapter
ER  -