Baritina, witheritul și celestina
By: Viorel Brana, Teofil Gridan.
Contributors: Gridan, Teofil, joint author.
Series: Seria Substanțe minerale utile
Publisher: Editura Tehnică
Published: 1979
Place of publication: București
Language: rum
Number of pages: 230
Subjects: Barite.; Witherite.; Celestite.
Notes: Bibliography: p. 225-[227]