Vanek, Jaroslav.
The Natural Resource Content of United States Foreign Trade / - 1st ed / - Cambridge : M.I.T, Press. - 142p :
Foreign Trade
X:27.7:19N5<-M70 / K3;1
The Natural Resource Content of United States Foreign Trade / - 1st ed / - Cambridge : M.I.T, Press. - 142p :
Foreign Trade
X:27.7:19N5<-M70 / K3;1