Innovation and management: international comparisons /
International telephone directory 1956.
International telephone directory 1957.
Telephoning /
Telephoning.
Reflections.
Telephone skills. : Essential telephone English. /
Handbook on the International Exchange of Publications.
Exchange rates and international finance /
Unesco Handbook of International Exchanges.
Telephoning in English /
Telephoning in English Audio CD 1 /
Telephoning in English Audio CD 2 /
Microwave measurement by comparison methods /
Reflections ; Dance of dreams /
Reflected in you /
Hungarian political trends between the revolution and the compromise (1849-1867) /
The Internet telephone toolkit. /
The Progress of the hungarian telephone exchange manufacturing between 1950 and 1975 in the reflection of international comparisons /