261
Published 1996
Springer US

262
Published 1987
Springer US

263
Published 1984
Springer US

265
Published 1991
Springer US

266
Published 1997
Springer US

268
Published 1995
Springer US

269
Published 1998
Springer US

270
Published 1998
Springer US

271
Published 1994
Springer US

273
by Bamford, M.
Published 1995
Springer US

280
Published 2000
Humana