TY  - BOOK
AU  - R. F. Morgan
TI  - Environmental biology
T2  - Volume 2
U1  - 574.07 M847e 
PY  - 1964///
CY  - Oxford
PB  - Pergamon
KW  -  Biology
KW  - Study and teaching (Secondary) Ecology
KW  - Study and teaching
ER  -