International Conference on Energy Alternatives / Risk Education (1989 : Lake Balaton, Hungary), & Marx, G. (1989). Energy education. National Centre for Educational Technology.
Čikaški stil citiranja (17. izdanje)International Conference on Energy Alternatives / Risk Education (1989 : Lake Balaton, Hungary), i George Marx. Energy Education. Hungary: National Centre for Educational Technology, 1989.
MLA način citiranja (9. izdanje)International Conference on Energy Alternatives / Risk Education (1989 : Lake Balaton, Hungary), i George Marx. Energy Education. National Centre for Educational Technology, 1989.
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