TY  - RPRT
TI  - Status of Pacific Black Brant Branta bernicla nigricans on Wrangel Island, Russian Federation
AU  - David H. Ward
AU  - Dirk V. Derksen
AU  - Sergei Kharitonov
AU  - Mikhail Stishov
AU  - Vasily V. Baranyuk
PY  - 1993
UR  - https://pubs.usgs.gov/publication/70185346
ID  - 70185346
ER  -