Biblioteca SEGEMAR

Vista normal Vista MARC Vista ISBD

Zeillinger, John E.

Preparation characteristics of coal from Beaver and Lawrence counties, Pa ohn E. Zeilinger - Washington Bureau of Mines 1969 - ii, 23 p. il., 1 map 26 cm - RI 7324 .

Subjects--Topical Terms:
coal
preparation

Subjects--Geographic Terms:
Lawrence [Pensilvania]

Universal Decimal Class. No.: 622