APA
"UN E. C. F. E., "UN E. C. F. E., . (1990). Membrane technology in the chemical industy. New: York United Nations U S A.
Chicago
"UN ECONOMIC COMMISSION FOR EUROPE", "UN ECONOMIC COMMISSION FOR EUROPE", . 1990. Membrane technology in the chemical industy. New: York United Nations U S A.
Harvard
"UN E. C. F. E., "UN E. C. F. E., . (1990). Membrane technology in the chemical industy. New: York United Nations U S A.
MLA
"UN ECONOMIC COMMISSION FOR EUROPE", "UN ECONOMIC COMMISSION FOR EUROPE", . Membrane technology in the chemical industy. New: York United Nations U S A. 1990.
