Columbia subject headings:
Chemical engineering--Dictionaries--German.
Chemical engineering--Dictionaries.
Chemistry--Dictionaries--German.
Chemistry--Dictionaries.
English language--Dictionaries--German.
German language--Dictionaries--English.
Harvard subject headings:
Chemical engineering--Dictionaries
Chemical engineering--Dictionaries--German.
Chemistry--Dictionaries
Chemistry--Dictionaries--German
English language--Dictionaries--German
German language--Dictionaries--English.
Princeton subject headings: