Cita APA (7a ed.)

Schäfer, P. (1977). Process control computer technology: A programmed introduction. Siemens.

Cita Chicago Style (17a ed.)

Schäfer, Peter. Process Control Computer Technology: A Programmed Introduction. Berlin: Siemens, 1977.

Cita MLA (9a ed.)

Schäfer, Peter. Process Control Computer Technology: A Programmed Introduction. Siemens, 1977.