APA (7e ed.) Bronvermelding

Não informado. (1963). Ball and Roller Bearing Engineering. Fag kugelfischer Georg Schafer.

Chicago (17e ed.) Bronvermelding

Não informado. Ball and Roller Bearing Engineering. Schweinfurt, Alemanha: Fag kugelfischer Georg Schafer, 1963.

MLA (8e ed.) Bronvermelding

Não informado. Ball and Roller Bearing Engineering. Fag kugelfischer Georg Schafer, 1963.

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