Title: Veshchestvennyĭ sostav fosfatonosnykh kor vyvetrivanii︠a︡ i svi︠a︡zannykh s nimi mestorozhdeniĭ fosfatov =
First published: 1975
Subjects: Weathering, Phosphates
LC classification: QE1 A3525 vyp. 195, TN913, TN913 Z36