APA (7th ed.) Citation

King, W. J. (2010). The Natural Philosophy of William Gilbert and His Predecessors. Project Gutenberg.

Chicago Style (17th ed.) Citation

King, W. James. The Natural Philosophy of William Gilbert and His Predecessors. Project Gutenberg, 2010.

MLA (9th ed.) Citation

King, W. James. The Natural Philosophy of William Gilbert and His Predecessors. Project Gutenberg, 2010.

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