Cita APA (7a ed.)

Lasswell, H. D. (1971). A pre-view of policy sciences. American Elsevier.

Cita Chicago Style (17a ed.)

Lasswell, Harold D. A Pre-view of Policy Sciences. New York: American Elsevier, 1971.

Cita MLA (8a ed.)

Lasswell, Harold D. A Pre-view of Policy Sciences. American Elsevier, 1971.