Columbia subject headings:
Harvard subject headings:
Communication in learning and scholarship--Congresses.
Knowledge, Sociology of--Congresses.
Learning and scholarship--History--Congresses.
Printing presses--History--Congresses.
Transfer of training--Congresses.
Princeton subject headings:
Communication in learning and scholarship--Congresses.
Knowledge, Sociology of--Congresses.
Learning and scholarship--History--Congresses.
Printing presses--History--Congresses.
Transfer of training--Congresses.