TY  - RPRT
TI  - Colours for sizes: a recommended ergonomic colour code.
AU  - E C Poulton
PY  - 1975
DO  - 10.1016/0003-6870(75)90116-7
UR  - https://pubmed.ncbi.nlm.nih.gov/15677190/
ID  - 15677190
ER  -