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The foreign trade of the OPEC states
Gälli, Anton, (1979)
Problems of assessing unrecorded trade
Richter, H. V., (1970)
Richter, H. V., (1974)
The high yield program in Burma
Richter, H. V., (1973)
The impact of socialism on economic activity in Burma
Richter, H. V., (1972)
Indonesiaʹs share in the entrepot trade of the States of Malaya and Singapore prior to confrontation
Richter, H. V., (1966)