APA (7th ed.) Citation

Caithness, J. S. (2005). Lectures on Popular and Scientific Subjects. Project Gutenberg.

Chicago Style (17th ed.) Citation

Caithness, James Sinclair. Lectures on Popular and Scientific Subjects. Project Gutenberg, 2005.

MLA (9th ed.) Citation

Caithness, James Sinclair. Lectures on Popular and Scientific Subjects. Project Gutenberg, 2005.

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