by MANRING, LEWIS, EDWARD, BURCH, ROBERT, RAY, JR
Year of Publication 13.06.1991

by GOULD, RICHARD, BURCH, ROBERT, RAY, JR, LEE, KIU-SEUNG, PHILLIPS, BRIAN, ROSS
Year of Publication 15.08.1996

by GOULD, RICHARD, BURCH, ROBERT, RAY, JR, LEE, KIU-SEUNG, PHILLIPS, BRIAN, ROSS
Year of Publication 31.07.1996

by STEVEN RAYMOND LUSTIG, ROBERT RAY BURCH
Year of Publication 21.12.2000

by STEVEN RAYMOND LUSTIG, ROBERT RAY BURCH
Year of Publication 23.11.2000

by HIGLEY, DAVID, PAGE, BURCH, ROBERT, RAY, JR, LERTOLA, JAMES, GERARD
Year of Publication 27.09.1995

by BURCH, ROBERT, RAY, JR, LUSTIG, STEVEN, RAYMOND, JONES, EDWARD, BARRY
Year of Publication 16.08.1995

by BURCH, ROBERT, RAY, EXTON, PA 19341, US
Year of Publication 24.05.1995

by BURCH, ROBERT, RAY, JR., EXTON, PA 19341, US
Year of Publication 04.05.1995

by RICHARD GOULD, ROBERT RAY BURCH, BRIAN ROSS PHILLIPS, KIU-SEUNG LEE
Year of Publication 27.09.1994

by RICHARD GOULD, BRIAN ROSS PHILLIPS, ROBERT RAY BURCH JR, KIU-SEUNG LEE
Year of Publication 23.06.1994

by JONES, EDWARD BARRY, BURCH, ROBERT RAY JR, LUSTIG, STEVEN RAYMOND
Year of Publication 11.05.1994

by BURCH, ROBERT, RAY, JR, LUSTIG, STEVEN, RAYMOND, JONES, EDWARD, BARRY
Year of Publication 11.05.1994

by GOULD, RICHARD, BURCH, ROBERT, RAY, JR, LEE, KIU-SEUNG, PHILLIPS, BRIAN, ROSS
Year of Publication 12.01.1994

by RICHARD GOULD, KIU-SEUNG LEE ET AL, ROBERT RAY BURCH
Year of Publication 03.11.1993

by HIGLEY, DAVID, PAGE, BURCH, ROBERT, RAY, JR, LERTOLA, JAMES, GERARD
Year of Publication 10.06.1993

by RICHARD GOULD, BRIAN ROSS PHILLIPS, ROBERT RAY BURCH JR, KIU-SEUNG LEE
Year of Publication 21.10.1992

by GOULD, RICHARD, BURCH, ROBERT, RAY, JR, LEE, KIU-SEUNG, PHILLIPS, BRIAN, ROSS
Year of Publication 01.10.1992

by STEVEN RAYMOND LUSTIG, ROBERT RAY BURCH JR
Year of Publication 09.01.2001

by LUSTIG, STEVEN, RAYMOND, BURCH, ROBERT, RAY, MCCARRON, EUGENE, M., JR
Year of Publication 01.03.2003