APA

Weeks W. S., . (1926). Ventilation of mines. New York: McGraw-Hill.

Chicago

Weeks Walter S, . 1926. Ventilation of mines. New York: McGraw-Hill.

Harvard

Weeks W. S., . (1926). Ventilation of mines. New York: McGraw-Hill.

MLA

Weeks Walter S, . Ventilation of mines. New York: McGraw-Hill. 1926.