1
by Easterling, K. E.
Published 1992
2
by Reed-Hill, Robert E.
Published 1973
3
by Pickering, F. B.
Published 1978
4
by Avner, Sidney H.
Published 1974
5
by Minkoff, I.
Published 1983
6
by Smallman, R. E.
Published 1985
7
by Honeycombe, R. W. K.
Published 1997
8
by Easterling, K.E.
Published 1983
9
by Dieter, George Ellwood.
Published 1976