APA (7th ed.) Citation

Rodwell, G. F. Etna: A History of the Mountain and of its Eruptions.

Chicago Style (17th ed.) Citation

Rodwell, G. F. Etna: A History of the Mountain and of Its Eruptions.

MLA (9th ed.) Citation

Rodwell, G. F. Etna: A History of the Mountain and of Its Eruptions.

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