APA
Robert Yonover E. C., . (2009). Hardcore Inventing - invent, protect, promote, and profit from your inventions. : Skyhorse Publ.
Chicago
Robert Yonover Ellie Crowe, . 2009. Hardcore Inventing - invent, protect, promote, and profit from your inventions. : Skyhorse Publ.
Harvard
Robert Yonover E. C., . (2009). Hardcore Inventing - invent, protect, promote, and profit from your inventions. : Skyhorse Publ.
MLA
Robert Yonover Ellie Crowe, . Hardcore Inventing - invent, protect, promote, and profit from your inventions. : Skyhorse Publ. 2009.