TY  - BOOK
AU  - Murray, Desmond
AU  - Murray,Desmond
TI  - Species Revalued:  A Biological Study of Species as a Unit in the Economy of Nature, Shown from Plant and Insect Life
U1  - N54.2 
PY  - 1955///
CY  - London
PB  - Blackfriars Publications
N1  - includes index and biblioraphy; the historical aspect  the reign of law  natural selection  the fossil record  barriers to the divergence of species
ER  -