APA (7th ed.) Citation

Billings, H. (1990). Magic and Hypersystems: A New Orderliness for Libraries.

Chicago Style (17th ed.) Citation

Billings, Harold. Magic and Hypersystems: A New Orderliness for Libraries. 1990.

MLA (9th ed.) Citation

Billings, Harold. Magic and Hypersystems: A New Orderliness for Libraries. 1990.

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