[Koha] what kind of format marc import

[robin ros]

hi everyone,

i have a problem importing from isis database to koha, when i upload
my iso file, giveme the error that isnot present the isbn or there is
not marc format. My database is in marc21 format, and this is like the
registry looks with the isbn camp:

00734000000000253000450000800090000001200160000902000190002504400130004405000200
00570920015000771000025000922450055001172600053001723000015002256500045002406500
04200285650001700327650005300344650004400397910000700441920001400448921000700462
955001100469
19991123
^aCIRMA Bibli2.
^a1-1-560-00064-3.
^aNicaragua.
^aF 1528 .
M57 1993.
^aBiblioteca**
^aMiranda, Roger, 1953-.
^aThe civil war in Nicaragua :
 inside the Sandinistas.
^aNew Brunswick, U.S.A^bTransaction Publishers^c1993
^a
xiv, 308^c24
^aNicaragua--Pol¡tica y gobierno--1979-1990.
^aNicaragua--Relacione
s exteriores--1979.
^aOrtega Daniel.
^aLiderazgo pol¡tico--Nicaragua--Historia--
Siglo xx.
^aFrente Sandinista de Liberaci¢n Nacional.
^ampc.
^aDisponible.
^a$40
.
^aI-17873.



and withouth isbn looks like this:

01178000000000397000450000100070000000800090000701200160001605000210003209200150
00531100009000682450038000772600038001153000013001535000041001665410012002076500
05600219650007300275650005300348650005300401650004100454650003600495650003000531
65300080056165300230056965300270059265300180061965300200063765300150065765300170
0672910001900689920001400708921001000722955001000732955001900742955001900761
199
38.
19990927
^aCIRMA Bibli2.
^aHQ 792.2 .E88 1995
^aBiblioteca**
^aUnicef
^aEsta
do mundial de la infancia 1995.
^aNueva York ^bJ & J Asociados ^c1995
^a97^c26^d
il
^aLa biblioteca tiene: 1995, 1998, 2001.
^aDonaci¢n.
^aNi€os--Paises en desar
rollo--P£blicaciones peri¢dicas
^aNi€os--Salud e higiene--Paises en desarrollo--
P£blicaciones peri¢dicas
^aNi€os--Asistencia social--P£blicaciones peri¢dicas
^a
Ni€os--Asistencia social--p£blicaciones peri¢dicas
^aNi€os--Asistencia social--E
stad¡sticas
^aPaise en desarrollo--Estad¡sticas
^aSalud mundial--Estad¡sticas
^a
Ni€os
^aPaises en desarrollo
^aP£blicaciones peri¢dicas
^aSalud e higiene
^aAsis
tencia social
^aEstad¡sticas
^aSalud mundial.
^a, fcBB, mpc, fc.
^aDisponible.
^
a$ 8.00.
^aI-19705
^aI-22130 a€o 2001
^aI-22131 a€o 1998



how does it has to look the registry to import to koha withouth error??

thanks a lot for you help,

robin

PD:(sorry my english i speak spanish)