FOUR RETAILERS JOIN CATALINA MARKETING NET

ST. PETERSBURG, Fla. -- Four chains have joined an in-store electronic marketing network, operated by Catalina Marketing, here.

os. Markets, Colton, Calif., with 111 stores in southern California.

Two divisions of Penn Traffic Co., Syracuse, N.Y., also rolled out the system: P&C Food Markets, also of Syracuse, and Quality Markets, Jamestown, N.Y., with a combined 114 stores in upstate and western New York.

With these additions, the network has expanded into 112 supermarket chains and more than 9,000 stores nationwide.