Ullmann's Encyclopedia of Industrial Chemistry - Ullmann's Encyclopedia of Industrial Chemistry is a reference work which discusses many topics related to industrial chemistry. This work was originally published in German by Fritz Ullmann in 1914. The fifth edition was the first version which was published in English. This encyclopedia is currently published online as well. Given a choice of categories company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, the text refers to which one?
The answer to this question is:
Written Work