TY  - RPRT
TI  - Conducting a descriptive survey: 2. Choosing a sampling strategy.
AU  - S B Macfarlane
PY  - 1997
DO  - 10.1177/004947559702700108
UR  - https://pubmed.ncbi.nlm.nih.gov/9030013/
ID  - 9030013
ER  -