by Prior, Jean Cutler
Year of Publication 1991

by Herzberg, Ruth, Pearson, John
Year of Publication 2001

by Agena, U
Year of Publication 1994

by Frable, G. W
Year of Publication 1994

by Seigley, L. S, Hallberg, George R
Year of Publication 1991

by Kross, B.C
Published in Technical information series (USA) (1990)

by Hallberg, George R
Year of Publication 1990

Year of Publication 2001

by Hill, Kay
Year of Publication 1987

by Hallberg, G.R
Published in Technical information series (USA) (1991)

by Hill, Kay R
Year of Publication 1992

by Wisner, Robin J
Year of Publication 2005

Year of Publication 2000

Year of Publication 1997