Betts, D. S. (1976). Refrigeration and thermometry below one Kelvin. Sussex University.
Dyfyniad Arddull ChicagoBetts, D S. Refrigeration and Thermometry Below One Kelvin. Sussex: Sussex University, 1976.
Dyfyniad MLABetts, D S. Refrigeration and Thermometry Below One Kelvin. Sussex University, 1976.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.