601
by Overland, Brian R.
Published 1995
602
Published 1994
603
604
605
606
Published 1988
607
608
by De Bono, Edward, 1933-
Published 1971
609
610
by Newbold, Paul.
Published 1991
611
by Fuller, Floyd
Published 1994
612
by Patel, S. K.
Published 1994
613
by Lister, Ted
Published 1995
614
by Elliott, John Huxtable.
Published 1968
615
by Web, Ken
Published 1990
616
by Fitzpatrick, J.B.
Published 1992
617
by Needham, Dave
Published 1991
618
by Mahathir bin Mohamad, 1925-
Published 1986
619
by Parkin, Michael.
Published 1990
620
by Newton, T. J.
Published 1990