APA (7th ed.) Citation

Van Dulken, S. (1999). British patents of invention, 1617-1977 : a guide for researchers / Stephen Van Dulken: A guide for researchers. British Library.

Chicago Style (17th ed.) Citation

Van Dulken, Stephen. British Patents of Invention, 1617-1977 : A Guide for Researchers / Stephen Van Dulken: A Guide for Researchers. London: British Library, 1999.

MLA (9th ed.) Citation

Van Dulken, Stephen. British Patents of Invention, 1617-1977 : A Guide for Researchers / Stephen Van Dulken: A Guide for Researchers. British Library, 1999.

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