System analysis for data transmission /
Microwave transmission design data.
International telephone directory 1956.
International telephone directory 1957.
Telephoning /
Telephoning.
International computing symposium 1977: proceedings of the international computing symposium 1977, Liege, Belgium, 4-7 April 1977.
Proceedings of the 2nd International Symposium on Trichoptera. University of Reading, England, 25 - 29 July 1977.
Telephone skills. : Essential telephone English. /
Modern transmission systems /
Transmission systems for technicians 2
Wireless Transmission System.
Telephoning in English /
Telephoning in English Audio CD 1 /
Telephoning in English Audio CD 2 /
Coronary heart diesease. 2nd International symposium at Frankfurt 1972.
Medical data Interpretation for MRCP.
2nd InternationalSymposium on Polymer Characterization ... August 21-23,1972 /
Electric Power Transmission Systems.
Medical data transmission by public telephone systems. : 2nd international symposium, Mainz, June 3 - 4, 1977.