Roskin, M. (1977). Other governments of Europe: Sweden, Spain, Italy, Yugoslavia, and East Germany. Prentice-Hall, Inc.
Citazione stile Chigago Style (17a edizione)Roskin, Michael. Other Governments of Europe: Sweden, Spain, Italy, Yugoslavia, and East Germany. Englewood Cliffs, N.J: Prentice-Hall, Inc, 1977.
Citatione MLA (9a ed.)Roskin, Michael. Other Governments of Europe: Sweden, Spain, Italy, Yugoslavia, and East Germany. Prentice-Hall, Inc, 1977.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.