APA

Theil H., Schrage L., .The apportionment problem and the European Parliament. : .

Chicago

Theil Henri, Schrage Linus, .The apportionment problem and the European Parliament. : .

Harvard

Theil H., Schrage L., .The apportionment problem and the European Parliament. : .

MLA

Theil Henri, Schrage Linus, .: . .