TY  - BOOK
AU  - Congressus internationalis ornithologici (20th; Dec. 2-9, 19
TI  - Acta XX congressus internationalis ornithologici
U1  - 598.2 C53A 
PY  - 1991///
CY  - Wellington
PB  - New Zeeland Ornithological Congress rust Board
KW  - ORNITHOLOGY - CONGRESSES
KW  - BIRDS - CONGRESSES
ER  -