TY  - RPRT
TI  - Why has nursing been slow in developing a theoretic base?
AU  - R Donley
PY  - 1980
DO  - 10.1111/j.1547-5069.1980.tb01449.x
UR  - https://pubmed.ncbi.nlm.nih.gov/6898517/
ID  - 6898517
ER  -