.245
a	Cyanidation and concentration of gold and silver ores, by John V.N. Door and Francis L. Bosqui. Sec. ed.
h	Book
.100
a	Door John V.N.
.005
a	00000000000000
.260
a	New York: McGrawHill, 1950.
b
c	2000
.300
a	xv, 511 hlm.
b	23 cm.
c	xv, 511 hlm.; 23 cm.
.336
a	Book