Παραπομπή APA

Betts, D. S. (1976). Refrigeration and thermometry below one Kelvin. Sussex University.

Παραπομπή Chicago Style

Betts, D S. Refrigeration and Thermometry Below One Kelvin. Sussex: Sussex University, 1976.

Παραπομπή MLA

Betts, D S. Refrigeration and Thermometry Below One Kelvin. Sussex University, 1976.