by GEORGE JOSEPH BICH, TAPAN KUMAR GUPTA
Year of Publication 06.03.1985

by GEORGE JOSEPH BICH, TAPAN KUMAR GUPTA
Year of Publication 11.05.1983

by GEORGE JOSEPH BICH ET TAPAN KUMAR GUPTA
Year of Publication 22.04.1983

by BICH, GEORGE JOSEPH, PITTSBURGH, PA., US, GUPTA, TAPAN KUMAR, MONROEVILLE, PA., US
Year of Publication 24.01.1991

by KUMAR GUPTA,TAPAN, JOSEPH BICH,GEORGE
Year of Publication 05.05.1983