This site is pretty good.
http://www.alltime-athletics.com/
291 27:23.44 Carlos Lopes POR 18.02.47 1 Oslo 09.07.1983
319 27:25.13 Fernando Mamede POR 01.11.51 2 Oslo 09.07.1983
444 27:31.19 Nick Rose GBR 30.12.51 3 Oslo 09.07.1983
648 27:39.14 Steve Jones GBR 04.08.55 4 Oslo 09.07.1983
1449 27:55.66 Steve Binns GBR 25.08.60 5 Oslo 09.07.1983
1488 27:56.17 Markus Ryffel SUI 05.02.55 6 Oslo 09.07.1983
1626 27:57.83 Rodolfo Gómez MEX 30.10.50 7 Oslo 09.07.1983
1768 27:59.49 David Clarke GBR 01.01.58 8 Oslo 09.07.1983
2881 28:10.93 Julian Goater GBR 12.01.53 9 Oslo 09.07.1983
3417 28:15.19 Roy Andersen NOR 02.04.55 10 Oslo 09.07.1983
Only sub 28:20 performances though.