TY  - BOOK
AU  - Patterson, I. J
TI  - The shelduck : a study in behavioural ecology
SN  - 9780521113359
SN  - 81021231
U1  - 598.41 PAT 
PY  - 1982///
CY  - Cambridge
PB  - Cambridge University Press
KW  - Shelduck - Behavior
KW  - Shelduck - Ecology
N1  - Includes indexes. Bibliography: p. [256]-267
ER  -