C 66.997
Report of the Twenty-Third Session, Czechoslovakia 1968 : International Geological Congress. Proceedings of Section 5, Geological Results of Applied Geophysics edited by Jan Mašín. -- Prague : Academia, 1968 ([KNT 1]).
Mašín, Jan, 1923-
aplikovaná geofyzika * geologie * sborníky konferencí
55. 550.83. (062.534)