APA

Bonney T. G., . (1899). Volcanoes their structure and significance. New York: G. P. Putnam's sons ; London.

Chicago

Bonney Thomas Georges, . 1899. Volcanoes their structure and significance. New York: G. P. Putnam's sons ; London.

Harvard

Bonney T. G., . (1899). Volcanoes their structure and significance. New York: G. P. Putnam's sons ; London.

MLA

Bonney Thomas Georges, . Volcanoes their structure and significance. New York: G. P. Putnam's sons ; London. 1899.