| [var. Plumbopyrochlore (of Skorobogatova et al.)] Piero Comin-Chiaramonti, Celso Barros Gomes (1996) Alkaline magmatism in central-eastern Paraguay: relationships with coeval magmatism in Brazil. pp 231-248 Woolley, A. R. (1987) Alkaline Rocks and Carbonatites of the World. Part 1: North and South America. |