Cita APA (7a ed.)

Sheet Metal Industries. (1975). Sheet metal industries year book, 1974-75 (1a ed.). [s.n.].

Cita Chicago Style (17a ed.)

Sheet Metal Industries. Sheet Metal Industries Year Book, 1974-75. 1a ed. [S.l.]: [s.n.], 1975.

Cita MLA (9a ed.)

Sheet Metal Industries. Sheet Metal Industries Year Book, 1974-75. 1a ed. [s.n.], 1975.