Hein, K. (1970). Investigations into the ignition and combustion behaviour of swirling natural gas flames. International Flame Research Foundation.
Čikaški stil citiranja (17. izdanje)Hein, Klaus. Investigations into the Ignition and Combustion Behaviour of Swirling Natural Gas Flames. Ijmuiden, Holland: International Flame Research Foundation, 1970.
MLA način citiranja (8. izdanje)Hein, Klaus. Investigations into the Ignition and Combustion Behaviour of Swirling Natural Gas Flames. International Flame Research Foundation, 1970.
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