Tractors, machinery for agriculture and forestry, powered lawn and garden equipment - Symbols for operator controls and other displays - Part 1: Common symbols (ISO 3767-1:1991); German version EN ISO 3767-1:1995— 24 стр.
Tractors, machinery for agriculture and forestry, powered lawn and garden equipment - Symbols for operator controls and other displays - Part 2: Symbols for agricultural tractors and machinery (ISO 3767-2:1991); German version EN ISO 3767-2:1995— 14 стр.