APA

Spurr J. E., . (1923). The ore magmas. New York: McGraw-Hill.

Chicago

Spurr Josiah Edward, . 1923. The ore magmas. New York: McGraw-Hill.

Harvard

Spurr J. E., . (1923). The ore magmas. New York: McGraw-Hill.

MLA

Spurr Josiah Edward, . The ore magmas. New York: McGraw-Hill. 1923.