Nicoll, William. Understanding the European Union / Sir William Nicoll, Trevor C. Salmon. - Harlow, England ; New York : Longman, 2001. - xxi, 572 p. : ill. ; 24 cm. ISBN: 0130208388 LCCN: 2001267050 LC Class. No.: JN30 / .N535 2001 Dewey Class. No.: 341.242