APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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

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