00765cam a2200181 i 4500020001500000040000800015082002600023245008500049260006900134300002900203500018500232650003500417650002600452650001800478700001900496710001200515710005600527  a9154602432  cDLC00a589 SWE 1978 C147 Or.00aEnvironmental role of nitrogen-fixing blue-green algae and asymbiotic bacteria /  a[Stockholm] :bSwedish Natural Science Research Council,cc1978.  a391 p. :bill. ;c25 cm.  a"Proceedings of an international symposium, sponsored by the Swedish Ministry of Education and the Swedish Natural Science Research Council, Uppsala, Sweden, 20-24 September 1976." 0aNitrogen-fixing microorganisms 0aNitrogen-fixing algae 0aCyanobacteria1 aGranhall, Ulf,1 aSweden.2 aStatens naturvetenskapliga forskningsråd (Sweden)