Columbia subject headings:
Harvard subject headings:
Audio-visual materials--Directories.
Instructional materials industry--Directories--Bibliography.
Libraries--Special collections--Small press books
Libraries--Special collections--Underground press publications
Publishers and publishing--Directories
Small press books--Bibliography of bibliographies.
Small press books--Bibliography--Methodology.
Small presses--Bibliography.
Small presses--Directories--Bibliography.
Small presses--Directories.
Small presses--Reference books--Bibliography.
Underground press publications--Bibliography--Methodology.
Underground press publications--Bibliography.
Underground press publications--Directories--Bibliography.
Underground press publications--Directories.
Underground press publications--Reference books--Bibliography.
Princeton subject headings:
Acquisitions (Libraries)
Audio-visual materials--Bibliography.
Bibliography of bibliographies.
Book selection.
Publishers and publishing--Directories--Bibliography.
Reference books--Bibliography.
Small press books--Bibliography.
Underground press publications--Directories--Bibliography.