APA (7th ed.) Citation

Woolley, M. E. (2011). The Early History of the Colonial Post-Office. Project Gutenberg.

Chicago Style (17th ed.) Citation

Woolley, Mary Emma. The Early History of the Colonial Post-Office. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Woolley, Mary Emma. The Early History of the Colonial Post-Office. Project Gutenberg, 2011.

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