TY  - RPRT
TI  - Ergonomic principles and map design.
AU  - R M Taylor
AU  - V D Hopkin
PY  - 1975
DO  - 10.1016/0003-6870(75)90110-6
UR  - https://pubmed.ncbi.nlm.nih.gov/15677184/
ID  - 15677184
ER  -