APA
Farquhar O C Ed, Conference on economic geology in massachusetts (1966 : Amherst Massachusetts), . (1967). Proceeding on economic geology in Massachusetts. : .
Chicago
Farquhar O C Ed, Conference on economic geology in massachusetts (1966 : Amherst Massachusetts), . 1967. Proceeding on economic geology in Massachusetts. : .
Harvard
Farquhar O C Ed, Conference on economic geology in massachusetts (1966 : Amherst Massachusetts), . (1967). Proceeding on economic geology in Massachusetts. : .
MLA
Farquhar O C Ed, Conference on economic geology in massachusetts (1966 : Amherst Massachusetts), . Proceeding on economic geology in Massachusetts. : . 1967.
