APA (7th ed.) Citation

Waller, M. E., & Nelson, G. P. (2007). Flamsted quarries. Project Gutenberg.

Chicago Style (17th ed.) Citation

Waller, Mary E., and G. Patrick Nelson. Flamsted Quarries. Project Gutenberg, 2007.

MLA (9th ed.) Citation

Waller, Mary E., and G. Patrick Nelson. Flamsted Quarries. Project Gutenberg, 2007.

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