TY - BOOK ID - 135773145 TI - Coals of the Monogahela Formation or Upper Productive Coal Measures : Part I, by J.A. Bownocker. Chemical Analyses and Calorifie Tests of the Clarion, Lower Kittanning, Middle Kittanning and Upper Freeport Coals; Part II, by N.W. Lord, and E.E. Somermeier. AU - Bownocker, J.A. AU - Lord, N.W. AU - Somermeier, E.E. PY - 1908 PB - Columbus s.n. DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:135773145 AB - ER -