A. W. Sijthoff's Uitgeversmaatschappij & Simons, W. B. (1980). The constitutions of the communist world. Sijthoff & Noordhoff.
Citazione stile Chigago Style (17a edizione)A. W. Sijthoff's Uitgeversmaatschappij e William B. Simons. The Constitutions of the Communist World. Alphen aan den Rijn ; Germantown: Sijthoff & Noordhoff, 1980.
Citatione MLA (9a ed.)A. W. Sijthoff's Uitgeversmaatschappij e William B. Simons. The Constitutions of the Communist World. Sijthoff & Noordhoff, 1980.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.