APA (7th ed.) Citation

Huekels, J. G., & Llewellyn. (2008). Advanced Chemistry. Project Gutenberg.

Chicago Style (17th ed.) Citation

Huekels, Jack G., and Llewellyn. Advanced Chemistry. Project Gutenberg, 2008.

MLA (9th ed.) Citation

Huekels, Jack G., and Llewellyn. Advanced Chemistry. Project Gutenberg, 2008.

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