APA (7th ed.) Citation

Maxwell, H. (2012). Trees. A Woodland Notebook Containing Observations on Certain British and Exotic Trees. Project Gutenberg.

Chicago Style (17th ed.) Citation

Maxwell, Herbert. Trees. A Woodland Notebook Containing Observations on Certain British and Exotic Trees. Project Gutenberg, 2012.

MLA (9th ed.) Citation

Maxwell, Herbert. Trees. A Woodland Notebook Containing Observations on Certain British and Exotic Trees. Project Gutenberg, 2012.

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