TY  - BOOK
AU  - Olsson Gunnar
TI  - Birds in egg/eggs in birds
T2  - Research in Planning and Design. 7
SN  - 0 850860776
U1  - R17, M0 
PY  - 1980///
CY  - London
PB  - Pion U. K.        
KW  -  Philosophy
KW  - Logic-Scientific Method
N1  - Bibliography: P 211-36
ER  -