-
81
Proceedings of the 3rd Congress of International Congress Organizers and Technicians, Rome, November 12-15, 1962.
Baskı/Yayın Bilgisi 1963Kitap -
82
World list of scientific periodicals published in the years 1900-1960
Baskı/Yayın Bilgisi 1963Kitap -
83
The conference handbook a guide to planning and conducting association conferences
Baskı/Yayın Bilgisi 1962Kitap -
84
-
85
-
86
-
87
-
88
World list of scientific periodicals published in the years 1900-1950.
Baskı/Yayın Bilgisi 1952Kitap -
89
-
90