APA

Gerling (Heinrich) ;Heller (Karl.H), . (1996). All About Machine Tools. : .

Chicago

Gerling (Heinrich) ;Heller (Karl.H), . 1996. All About Machine Tools. : .

Harvard

Gerling (Heinrich) ;Heller (Karl.H), . (1996). All About Machine Tools. : .

MLA

Gerling (Heinrich) ;Heller (Karl.H), . All About Machine Tools. : . 1996.