[On the official inspection of coal-tar dyes in 1969. I. Results of the official inspection of coal-tar dyes].
D003033:Coal Tar / Q000032:analysis*; D004396:Coloring Agents / Q000032:analysis*; D005503:Food Additives / Q000032:analysis*
D004396:Coloring Agents; D005503:Food Additives; D003033:Coal Tar