APA (7th ed.) Citation

Lasswell, H. D. (1970). The Library as a Social Planetarium.

Chicago Style (17th ed.) Citation

Lasswell, Harold D. The Library as a Social Planetarium. 1970.

MLA (9th ed.) Citation

Lasswell, Harold D. The Library as a Social Planetarium. 1970.

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