INDIAN SOCIETY OF ENGINEERING GEOLOGY
SYMPOSIUM ON ROCK MECHANICS:SPECIAL OF "JOURNAL OF ENGINEERING GEOLOGY" - 6 - I.S.E.G 1971
624.15406 I39
SYMPOSIUM ON ROCK MECHANICS:SPECIAL OF "JOURNAL OF ENGINEERING GEOLOGY" - 6 - I.S.E.G 1971
624.15406 I39