TY  - BOOK
AU  - Gatke,Heinrich
AU  - Rosenstock,Rudolph
ED  - Dr. Sailendra Nath Sen Collection (National Library, India)
TI  - Heligoland as an ornithological observatory: the result of fifty years' experience 
U1  - 598.2943518 
PY  - 1895///
CY  - Edinburgh
PB  - D. Douglas
KW  - Birds
KW  - Germany
KW  - Helgoland
KW  - Migration
N1  - Includes index
ER  -