International
Tables for Crystallography Volume A Spacegroup symmetry Edited by M. I. Aroyo © International Union of Crystallography 2016 
International Tables for Crystallography (2016). Vol. A, ch. 2.1, p. 147

^{†}The symbols represent orthographic projections. In the cubic spacegroup diagrams, complete orthographic projections of the symmetry elements around highsymmetry points, such as ; ; , are given as `inserts'.
^{‡}In the space groups (216), (225) and (227), the shortest lattice translation vectors in the glide directions are or and or , respectively. ^{§}Glide planes d occur only in orthorhombic F space groups, in tetragonal I space groups, and in cubic I and F space groups. They always occur in pairs with alternating glide vectors, for instance and . The second power of a glide reflection d is a centring vector. ^{¶}The glide vector is half of a centring vector, i.e. one quarter of the diagonal of the conventional bodycentred cell in space groups (220) and (230). 