TY  - BOOK
AU  - Siebert H and others
TI  - Trade and environment :  A theoretical enquiry   
T2  - Studies In Environmental Science. 6
U1  - U6:(G:55), M0 
PY  - 1980///
CY  - Amsterdam
PB  - Elsevier Scientific Publishing Company       
KW  - Economic Geography
N1  - Bib p. 329-35
ER  -