Citation: Benmmoussa, A; Groult, D; Labbe, Ph; Raveau, B (1984). Two New Members of a Series of Monoclinic Sodium Phosphate Tungsten Bronzes Na~x~ P~4~ O~8~ (W O~3~)~2m~: Na~x~ P~4~ W~8~ O~32~ (m=4) and Na~x~ P~4~ W~12~ O~44~ (m=6). Acta Crystallographica C (39,1983-), 40, pp. 573-576.