00405nam a2200133   4500008004100000020001800041100002900059245005000088250001100138260005400149300002300203650002500226050002000251720314s1972    njua     b    001 0 eng    a97881203005901 aBillings, Marland Pratt,00aStructural geologyc[by] Marland P. Billings.  a3d ed.  aNew Delih.,bPHI Learning Private Limitedc[1972]  axv, 606 p.billus. 0aGeology, Structural.00aQE601b.B5 1972