TY  - RPRT
TI  - Comparison of time-sampling and continuous-recording techniques for observing developmental changes in caretaker and infant behaviors.
AU  - E E McDowell
PY  - 1973
DO  - 10.1080/00221325.1973.10533192
UR  - https://pubmed.ncbi.nlm.nih.gov/4783780/
ID  - 4783780
ER  -