by CORNELIS POOT, CHARLES CORNELIS VERBURG, DOUGLAS CHATER KIRT ET AVRIL BROWN MCNEILL
Year of Publication 01.10.1976

by CHARLES CORNELIS VERBURG
Year of Publication 01.05.1991

by HOUGHTON, MARK PHILLIP, VERBURG, CHARLES CORNELIS
Year of Publication 21.01.1997

by VERBURG,CHARLES CORNELIS, HOUGHTON,MARK PHILLIP
Year of Publication 30.10.1995

by VERBURG CHARLES CORNELIS, HOUGHTON MARK PHILLIP
Year of Publication 18.10.1995

by HOUGHTON, MARK, PHILLIP, VERBURG, CHARLES, CORNELIS
Year of Publication 26.04.1995

by SCHEPERS, FREDERIK JAN, VERBURG, CHARLES CORNELIS
Year of Publication 22.02.1995

by CHARLES CORNELIS VERBURG, MARK PHILLIP HOUGHTON
Year of Publication 09.01.1995

by VERBURG CHARLES CORNELIS, HOUGHTON MARK PHILLIP
Year of Publication 22.08.1994

by SCHEPERS, FREDERIK JAN, VERBURG, CHARLES CORNELIS
Year of Publication 01.08.1994

by VERBURG CHARLES CORNELIS, HOUGHTON MARK PHILLIP
Year of Publication 25.07.1994

by HOUGHTON, MARK, PHILLIP, VERBURG, CHARLES, CORNELIS
Year of Publication 17.03.1994

by SCHEPERS, FREDERIK JAN, VERBURG, CHARLES CORNELIS
Year of Publication 23.02.1994

by CHARLES CORNELIS VERBURG, MARK PHILLIP HOUGHTON
Year of Publication 31.01.1994

by CHARLES CORNELIS VERBURG, MARK PHILLIP HOUGHTON
Year of Publication 30.12.1993

by HOUGHTON, MARK, PHILLIP, VERBURG, CHARLES, CORNELIS
Year of Publication 09.12.1993

by SCHEPERS, FREDERIK JAN, VERBURG, CHARLES CORNELIS
Year of Publication 24.02.1993

by MONTAGUE, PETER, GRAHAM, BIRKER, PAUL, JOHAN, M., W., L, FONTEIJN, TINO, A., A, VERBURG, CHARLES, CORNELIS
Year of Publication 17.03.2004

by FREDERIK JAN SCHEPERS, CHARLES CORNELIS VERBURG
Year of Publication 19.12.1991

by SCHEPERS, FREDERIK JAN, VERBURG, CHARLES CORNELIS
Year of Publication 24.07.1991