Cita APA

Knorr, K. E., & Verba, S. (1961). The international system: Theoretical essays. Princeton University.

Citación estilo Chicago

Knorr, Klaus E., and Sidney Verba. The International System: Theoretical Essays. Princeton: Princeton University, 1961.

Cita MLA

Knorr, Klaus E., and Sidney Verba. The International System: Theoretical Essays. Princeton University, 1961.

Warning: These citations may not always be 100% accurate.