TY  - BOOK
AU  - Williamson,Kenneth
TI  - Identification for ringers
T2  - Field guide (British Trust for Ornithology)
U1  - KUŞ 598.8 WI.I 1968 23
PY  - 1968///
CY  - [Oxford]
PB  - British Trust for Ornithology
KW  - Wood warblers
N1  - "Tansu Gürpınar" tarafından bağışlanmıştır; Includes bibliographical references
UR  - https://www.bto.org/sites/default/files/u17/downloads/publications/Williamson%20Guide%201%20searchable.pdf
ER  -