TY  - RPRT
TI  - Using stable isotopes to determine seabird trophic relationships
AU  - Keith A. Hobson
AU  - John F. Piatt
AU  - Jay Pitocchelli
PY  - 1994
DO  - 10.2307/5256
UR  - https://pubs.usgs.gov/publication/70182757
ID  - 70182757
ER  -