APA (7th ed.) Citation

Haykin, D. J. (1951). Subject headings; a practical guide. The Library of Congress.

Chicago Style (17th ed.) Citation

Haykin, David Judson. Subject Headings; a Practical Guide. Washington: The Library of Congress, 1951.

MLA (8th ed.) Citation

Haykin, David Judson. Subject Headings; a Practical Guide. The Library of Congress, 1951.

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