APA (7th ed.) Citation

Petrie, W. M. F. (2009). The Religion of Ancient Egypt. Project Gutenberg.

Chicago Style (17th ed.) Citation

Petrie, W. M. Flinders. The Religion of Ancient Egypt. Project Gutenberg, 2009.

MLA (9th ed.) Citation

Petrie, W. M. Flinders. The Religion of Ancient Egypt. Project Gutenberg, 2009.

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