Shaffer, J. N. (2007). Protect your great ideas for free!: Free steps for protecting the valuable ideas generated by every business owner, entreprenuer [sic], inventor, author, and artist. Maximum Press.
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Chicago Style (17th ed.) Zitazioa
Shaffer, J. Nevin. Protect Your Great Ideas for Free!: Free Steps for Protecting the Valuable Ideas Generated by Every Business Owner, Entreprenuer [sic], Inventor, Author, and Artist. Gulf Breeze, FL: Maximum Press, 2007.
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MLA (9th ed.) Zitazioa
Shaffer, J. Nevin. Protect Your Great Ideas for Free!: Free Steps for Protecting the Valuable Ideas Generated by Every Business Owner, Entreprenuer [sic], Inventor, Author, and Artist. Maximum Press, 2007.
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