TY  - RPRT
TI  - LOOKING BOTH WAYS.
AU  - H K WARD
PY  - 1964
DO  - 10.5694/j.1326-5377.1964.tb134372.x
UR  - https://pubmed.ncbi.nlm.nih.gov/14147065/
ID  - 14147065
ER  -