MLA

Berger, Hans. Automating with Step 7 In Stl and Scl : Programmable Controllers Simatic S7-300/400. 2nd rev. ed. Erlangen: Publicis MCD , 2001.

APA

Berger, H. (2001). Automating with STEP 7 in STL and SCL : programmable controllers SIMATIC S7-300/400. 2nd rev. ed. Erlangen: Publicis MCD .

Chicago

Berger, Hans, Automating with STEP 7 In STL and SCL: Programmable Controllers SIMATIC S7-300/400. 2nd rev. ed. Erlangen: Publicis MCD, 2001.