TY  - RPRT
TI  - Work sampling on a nursing unit: observations at equal-time intervals versus random observations.
AU  - D W Fogarty
AU  - J V McKenna
PY  - 1967
DO  - 10.1097/00006199-196716040-00019
UR  - https://pubmed.ncbi.nlm.nih.gov/5182504/
ID  - 5182504
ER  -