Cita APA (7a ed.)

North, R. C., Holsti, O. R., Zaninovich, M. G., & Zinnes, D. A. (1963). Content analysis: A handbook with applications for the study of international crisis. Northwestern University Press.

Cita Chicago Style (17a ed.)

North, Robert C., Ole R. Holsti, M. George Zaninovich, y Dina A. Zinnes. Content Analysis: A Handbook with Applications for the Study of International Crisis. [Evanston]: Northwestern University Press, 1963.

Cita MLA (9a ed.)

North, Robert C., et al. Content Analysis: A Handbook with Applications for the Study of International Crisis. Northwestern University Press, 1963.