https://ilms.ifm.ac.tz/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22Johansen%2C%20Leif.%22&sort_by=relevance&format=rss 2 0 100 ISBN: https://ilms.ifm.ac.tz/cgi-bin/koha/opac-detail.pl?biblionumber=5270 By Johansen, Leif.
Oxford: North-Holland 1974 .
274p., :ill. ;23cm

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]]> https://ilms.ifm.ac.tz/cgi-bin/koha/opac-detail.pl?biblionumber=5270 ISBN:0720431751 https://ilms.ifm.ac.tz/cgi-bin/koha/opac-detail.pl?biblionumber=14030 By Johansen, Leif..
London North-Hulland 1972 .
ix, 274p. , Include index, Bibliography 0720431751

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