British Library. Patents Information & Newton, D. (1997). The inventor's guide: How to protect and profit from your idea. The British Library Gower.
Chicago-viite (17. p.)British Library. Patents Information ja David Newton. The Inventor's Guide: How to Protect and Profit from Your Idea. [London], Hampshire, England, Brookfield, Vt: The British Library Gower, 1997.
MLA-viite (9. p.)British Library. Patents Information ja David Newton. The Inventor's Guide: How to Protect and Profit from Your Idea. The British Library Gower, 1997.
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