26.
Fusibility of Coal Ash and the Determination of the Softening Temperature (Classic Reprint)
by Fieldner, Arno C.
ISBN: 9780364173169
List Price: $27.36
27.
Determination of Nitrogen in Coal : A Comparison of Various Modifications of the Kjeldahl Me...
by Fieldner, Arno C.
ISBN: 9780656995851
List Price: $24.49