APA (7th ed.) Citation

Shoemaker, H. W., & Piper, H. B. (2007). A Catalogue of Early Pennsylvania and Other Firearms and Edged Weapons at "Restless Oaks", McElhattan, Pa. Project Gutenberg.

Chicago Style (17th ed.) Citation

Shoemaker, Henry W., and H. Beam Piper. A Catalogue of Early Pennsylvania and Other Firearms and Edged Weapons at "Restless Oaks", McElhattan, Pa. Project Gutenberg, 2007.

MLA (9th ed.) Citation

Shoemaker, Henry W., and H. Beam Piper. A Catalogue of Early Pennsylvania and Other Firearms and Edged Weapons at "Restless Oaks", McElhattan, Pa. Project Gutenberg, 2007.

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