APA

Sipkov I., Library of Congress, . (1973). Compulsory voting in European countries: pros and cons. Washington, D.C: European Law Division, Law Library, Library of Congress.

Chicago

Sipkov Ivan, Library of Congress, . 1973. Compulsory voting in European countries: pros and cons. Washington, D.C: European Law Division, Law Library, Library of Congress.

Harvard

Sipkov I., Library of Congress, . (1973). Compulsory voting in European countries: pros and cons. Washington, D.C: European Law Division, Law Library, Library of Congress.

MLA

Sipkov Ivan, Library of Congress, . Compulsory voting in European countries: pros and cons. Washington, D.C: European Law Division, Law Library, Library of Congress. 1973.