TY  - RPRT
TI  - A sociogram for the cranes of the world
AU  - D. H. Ellis
AU  - S.R. Swengel
AU  - George W. Archibald
AU  - C. B. Kepler
PY  - 1998
DO  - 10.1016/s0376-6357(98)00008-4
UR  - https://pubs.usgs.gov/publication/5223498
ID  - 5223498
ER  -