TY  - RPRT
TI  - Revisiting field experimentation: field notes for the future.
AU  - William R Shadish
PY  - 2002
DO  - 10.1037/1082-989x.7.1.3
UR  - https://pubmed.ncbi.nlm.nih.gov/11928889/
ID  - 11928889
ER  -