APA
,, . (1994). Investors environmental guidelines : Bulgaria, Czech Republic and Slovak Republic, Estonia, Hungary, Latvia, Lithuania, Poland, Romania. London: Graham & Trotman.
Chicago
,, . 1994. Investors environmental guidelines : Bulgaria, Czech Republic and Slovak Republic, Estonia, Hungary, Latvia, Lithuania, Poland, Romania. London: Graham & Trotman.
Harvard
,, . (1994). Investors environmental guidelines : Bulgaria, Czech Republic and Slovak Republic, Estonia, Hungary, Latvia, Lithuania, Poland, Romania. London: Graham & Trotman.
MLA
,, . Investors environmental guidelines : Bulgaria, Czech Republic and Slovak Republic, Estonia, Hungary, Latvia, Lithuania, Poland, Romania. London: Graham & Trotman. 1994.