APA (7th ed.) Citation

Hill, M., & Wittmann, A. (1979). Patent documentation / by Michael Hill. Sweet and Maxwell.

Chicago Style (17th ed.) Citation

Hill, Michael, and Alfred Wittmann. Patent Documentation / by Michael Hill. London: Sweet and Maxwell, 1979.

MLA (9th ed.) Citation

Hill, Michael, and Alfred Wittmann. Patent Documentation / by Michael Hill. Sweet and Maxwell, 1979.

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