Columbia subject headings:
Photography--Printing processes--Dictionaries.
Photomechanical processes--Dictionaries.
Printing--Dictionaries.
Prints--Technique--Dictionaries.
Harvard subject headings:
Photography--Encyclopedias.
Photography--Printing processes--Encyclopedias.
Photomechanical processes--Encyclopedias.
Printing--Encyclopedias.
Prints--Technique--Encyclopedias.
Princeton subject headings:
Dictionaries.
Photography--Printing processes--Dictionaries.
Photomechanical processes--Dictionaries.
Printing--Dictionaries.
Prints--Technique--Dictionaries.