by VRBA; RICHARD ALAN
Year of Publication 13.06.1978

by FEY, JR.; KYRAN WILFRED, KLECKA; JAMES STEVENS, MEHTA; NIKHIL A, VRBA; RICHARD ALAN, LAMANO; LARRY LEONARD
Year of Publication 01.12.1998

by ALAN VRBA,RICHARD
Year of Publication 22.12.1977

by DONAVON WILLIAM JOHNSON, WILLIAM CLYDE COCKERILL, RICHARD ALAN VRBA, LOUIS MICHAEL HORNUNG
Year of Publication 31.12.1984

by HORNUNG; LOUIS MICHAEL, COCKERILL; WILLIAM CLYDE, JOHNSON; DONAVON WILLIAM, VRBA; RICHARD ALAN
Year of Publication 08.11.1977

by HORNUNG, LOUIS MICHAEL, COCKERILL, WILLIAM CLYDE, VRBA, RICHARD ALAN, AUSTIN, TEX., US, JOHNSON, DONAVON WILLIAM
Year of Publication 31.03.1983

by MICHAEL HORNUNG,LOUIS, CLYDE COCKERILL,WILLIAM, ALAN VRBA,RICHARD, WILLIAM JOHNSON,DONAVON
Year of Publication 22.12.1977