APA (7th ed.) Citation

Huxley, T. H. Geological Contemporaneity and Persistent Types of Life.

Chicago Style (17th ed.) Citation

Huxley, Thomas Henry. Geological Contemporaneity and Persistent Types of Life.

MLA (9th ed.) Citation

Huxley, Thomas Henry. Geological Contemporaneity and Persistent Types of Life.

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