APA (7e ed.) Bronvermelding

Não informado. (1961). Russian castings production. British Cast Iron Research Association.

Chicago (17e ed.) Bronvermelding

Não informado. Russian Castings Production. Birmingham, Inglaterra: British Cast Iron Research Association, 1961.

MLA (8e ed.) Bronvermelding

Não informado. Russian Castings Production. British Cast Iron Research Association, 1961.

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