Columbia subject headings:
Electronic journals.
Harvard subject headings:
Libraries--Canada--Special collections--Electronic journals.
Libraries--Canada--Special libraries--Electronic journals.
Libraries--United States--Special collections--Electronic journals.
Libraries--United States--Special libraries--Electronic journals.
Library surveys--Canada.
Library surveys--United States.
Research libraries--Canada.
Research libraries--United States.
Princeton subject headings:
Libraries--Canada--Special libraries--Electronic journals.
Libraries--United States--Special libraries--Electronic journals.
Library surveys--Canada.
Library surveys--United States.
Research libraries--Canada.
Research libraries--United States.