by SIVULKA, GERALD M, EVERY, PETER
Year of Publication 20.03.1999

by SIVULKA GERALD M
Year of Publication 28.09.1988

by SIVULKA, GERALD M
Year of Publication 04.06.1985

by SIVULKA, GERALD M
Year of Publication 27.12.1984

by SIVULKA, GERALD M
Year of Publication 16.10.1984

by SIVULKA; GERALD M
Year of Publication 01.05.1984

by SIVULKA, GERALD M, EVERY, PETER
Year of Publication 11.05.1994

by GERALD M. SIVULKA
Year of Publication 18.12.1981

by SIVULKA, GERALD M, EVERY, PETER
Year of Publication 06.02.1991

by SIVULKA, GERALD M, EVERY, PETER
Year of Publication 01.02.1991

by SIVULKA; GERALD M, EVERY; PETER
Year of Publication 11.12.1990

by GANZEL; BLAISE J, SIVULKA; GERALD M
Year of Publication 21.04.1998

by GERALD M. SIVULKA, BLAISE J. GANZEL
Year of Publication 12.03.1997

by GANZEL, BLAISE, J, SIVULKA, GERALD, M
Year of Publication 27.02.1997

by DARNELL CHARLES, CAMPAU GREGORY P, BARRON RICHARD J, FULLER EDWARD N, SIVULKA GERALD M
Year of Publication 18.03.2003

by Barron, Richard J, Fuller, Edward N, Sivulka, Gerald M, Campau, Gregory P, Darnell, Charles
Year of Publication 18.03.2003

by FULLER; EDWARD N, BARRON; RICHARD J, SIVULKA; GERALD M, YOUTSEY; STEPHEN H, LUBBERS; MARK D
Year of Publication 21.11.2000

by SIVULKA,GERALD M.,US
Year of Publication 28.11.1980

by FULLER; EDWARD N, CAMPAU; GREGORY P, BARRON; RICHARD J, SIVULKA; GERALD M, DARNELL; CHARLES
Year of Publication 01.02.2000

by FULLER; EDWARD N, TACKETT; WENDELL D, SIVULKA; GERALD M, LINKER, JR.; HERBERT L
Year of Publication 18.08.1998