Betts, D. S. (1976). Refrigeration and thermometry below one Kelvin. Sussex University.
Čikaški stil citiranjaBetts, D S. Refrigeration and Thermometry Below One Kelvin. Sussex: Sussex University, 1976.
MLA način citiranjaBetts, D S. Refrigeration and Thermometry Below One Kelvin. Sussex University, 1976.
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