Trzeciakowski, Witold
Methods for the determination of the marginal rate and simplified methods for analysis of the effectiveness of foreign trade / Witold Trzeciakowski - Warszawa : Foreign Trade Research Centre , 1964 - 94p. : ill. ; 21 cm.
Includes bibliographical references.
Commerce--Poland
PI FTRC Met
Methods for the determination of the marginal rate and simplified methods for analysis of the effectiveness of foreign trade / Witold Trzeciakowski - Warszawa : Foreign Trade Research Centre , 1964 - 94p. : ill. ; 21 cm.
Includes bibliographical references.
Commerce--Poland
PI FTRC Met