APA (7e ed.) Bronvermelding

(1949). Investigation of Suffern graphite deposits, Rockland County, N.Y. / by W.T. Millar and Robert S. Sanford.

Chicago (17e ed.) Bronvermelding

Investigation of Suffern Graphite Deposits, Rockland County, N.Y. / by W.T. Millar and Robert S. Sanford. 1949.

MLA (9e ed.) Bronvermelding

Investigation of Suffern Graphite Deposits, Rockland County, N.Y. / by W.T. Millar and Robert S. Sanford. 1949.

Let op: Deze citaties zijn niet altijd 100% accuraat.