International
Tables for
Crystallography
Volume D
Physical properties of crystals
Edited by A. Authier

International Tables for Crystallography (2006). Vol. D. ch. 3.1, p. 365

Figure 3.1.5.9 

J. F. Scottc*
[Figure 3.1.5.9]
Figure 3.1.5.9

Phase diagram of potassium nitrate, KNO3.