TY  - RPRT
TI  - An improved multi-purpose teaching attachment.
AU  - G Berci
AU  - J F Panish
AU  - V Olson
PY  - 1975
DO  - 10.1016/s0016-5107(75)73679-9
UR  - https://pubmed.ncbi.nlm.nih.gov/1205099/
ID  - 1205099
ER  -