APA (7th ed.) Citation

Lodge, O. (2008). Life and Matter A Criticism of Professor Haeckel's 'Riddle of the Universe'. Project Gutenberg.

Chicago Style (17th ed.) Citation

Lodge, Oliver. Life and Matter A Criticism of Professor Haeckel's 'Riddle of the Universe'. Project Gutenberg, 2008.

MLA (9th ed.) Citation

Lodge, Oliver. Life and Matter A Criticism of Professor Haeckel's 'Riddle of the Universe'. Project Gutenberg, 2008.

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