International
Tables for Crystallography Volume A Spacegroup symmetry Edited by M. I. Aroyo © International Union of Crystallography 2015 
International Tables for Crystallography (2015). Vol. A, ch. 1.4, p. 42
Figure 1.4.1.1
H. Wondratschek^{e}


Figure 1.4.1.1
Symmetryelement diagrams of some point groups [adapted from Vainshtein (1994)]. The point groups are specified by their Schoenflies and Hermann–Mauguin symbols. (a) C_{2} = 2, (b) , (c) D_{3} = 32, (d) C_{4h} = 4/m, (e) D_{6h} = 6/m2/m2/m, (f) C_{3v} = 3m, (g) , (h) T = 23. [The cubic frame in part (h) has no crystallographic meaning: it has been included to aid visualization of the orientation of the symmetry elements.] 