by ERIC J. BUTTERFIELD
Year of Publication 13.04.1995

by BUTTERFIELD, ERIC J
Year of Publication 05.04.1995

by BUTTERFIELD, ERIC J
Year of Publication 31.03.1995

by BUTTERFIELD; ERIC J
Year of Publication 02.07.1991

by PODGERS; ALEXANDER R, BUTTERFIELD; ERIC J
Year of Publication 30.01.1990

by PODGERS; ALEXANDER R, BUTTERFIELD; ERIC J
Year of Publication 13.09.1988

by PODGERS; ALEXANDER R, BUTTERFIELD; ERIC J
Year of Publication 16.08.1988

by BUTTERFIELD, ERIC J, ROBERTS, ROBERT D, BOWER, ALLEN M
Year of Publication 27.12.1990

by BUTTERFIELD, ERIC J, ROBERTS, ROBERT D, BOWER, ALLEN M
Year of Publication 02.10.1990

by ALLEN M. BOWER, ROBERT D. ROBERTS, ERIC J. BUTTERFIELD
Year of Publication 02.02.1989

by Butterfield, Eric J, Bower, Allen M, Roberts, Robert D
Year of Publication 29.12.1987

by BUTTERFIELD, ERIC J, ROBERTS, ROBERT D, BOWER, ALLEN M
Year of Publication 25.11.1987

by BOWER; ALLEN M, ROBERTS; ROBERT D, BUTTERFIELD; ERIC J
Year of Publication 06.10.1987

by BUTTERFIELD, ERIC J, ROBERTS, ROBERT D, BOWER, ALLEN M
Year of Publication 30.09.1987

by BUTTERFIELD, ERIC J, ROBERTS, ROBERT D, BOWER, ALLEN M
Year of Publication 28.09.1987

by ALLEN M. BOWER, ROBERT D. ROBERTS, ERIC J. BUTTERFIELD
Year of Publication 30.07.1987

by TALBOT; ROY, COCKRAM; GEORGE R, HARMON; STEWART M, BUTTERFIELD; ERIC J
Year of Publication 27.08.1996

by KESTERMAN; JAMES E, LAMPING; FRANK G, SUNDERHAUS; CHARLES A, BUTTERFIELD; ERIC J
Year of Publication 29.06.1993

by HUEIL; JOSEPH C, NICOLA; KIRK M, SIEROCUK; THOMAS J, HUITEMA; THOMAS W, BUTTERFIELD; ERIC J, KOCH, JR.; ROBERT L
Year of Publication 26.09.1995

by HUEIL, JOSEPH C, BUTTERFIELD, ERIC J, SIEROCUK, THOMAS J, KOCH, ROBERT L., JR, NICOLA, KIRK M, HUITEMA, THOMAS W
Year of Publication 08.08.1995