TY  - RPRT
TI  - Social ecology: a method for evaluating groups.
AU  - J E Waters
AU  - A B Gavin
PY  - 1980
DO  - 10.1177/002076408002600405
UR  - https://pubmed.ncbi.nlm.nih.gov/7451056/
ID  - 7451056
ER  -