APA
Butler William E,, . (1999). Constitutional foundations of the CIS countries. The Hague: Kluwer Law International.
Chicago
Butler William E,, . 1999. Constitutional foundations of the CIS countries. The Hague: Kluwer Law International.
Harvard
Butler William E,, . (1999). Constitutional foundations of the CIS countries. The Hague: Kluwer Law International.
MLA
Butler William E,, . Constitutional foundations of the CIS countries. The Hague: Kluwer Law International. 1999.