Citazione Stile APA (7a Edizione)

Singer, J. D. 1. . . . . . . . . . . . . . . . . . e. (1968). Quantitative international politics: Insights and evidence. Fmree Press.

Citazione stile Chigago Style (17a edizione)

Singer, Joel David 1925- ed. Quantitative International Politics: Insights and Evidence. New York: Fmree Press, 1968.

Citatione MLA (9a ed.)

Singer, Joel David 1925- ed. Quantitative International Politics: Insights and Evidence. Fmree Press, 1968.