Berger, Hans Automating with STEP 7 in STL and SCL : programmable controllers SIMATIC S7-300/400 - 5th rev. and enlarged ed - Erlangen: Publicis Pub, 2009 - 543 p. : ill. ; 25 cm. + 1 DVD-ROM (4 3/4 in.) ISBN: 9783895783418 Subjects--Topical Terms: Programmable controllers Dewey Class. No.: 629.8 BER