TY  - BOOK
AU  - Simkiss,K.
TI  - Bird flight
T2  - Hutchinson biological monographs
U1  - 598 23
PY  - 1963///
CY  - London
PB  - Hutchinson Educational
KW  - Birds
KW  - Physiology
KW  - Flight
N1  - Bibliography: p. 87-88
ER  -