TY  - BOOK
AU  - Pennycuick,C.J.
TI  - Animal flight.
T2  - The Institute of Biology's studies in biology, no. 33
SN  - 0713123559
U1  - 598.218 
PY  - 1972///.[reprinted1981]
CY  - London
PB  - Edward Arnold
KW  - Flight
N1  - Bibliography: p. 67-68
ER  -