1
Corporate Authors:
Group Author:
Published: U.S. Office of Coal Research; for sale by the Supt. of Docs., U.S. Govt. Print. Off.,
Publication Dates: 1972]
Call Number: TQ546/W521/
Group Author:
Published: U.S. Office of Coal Research; for sale by the Supt. of Docs., U.S. Govt. Print. Off.,
Publication Dates: 1972]
Call Number: TQ546/W521/
2
Corporate Authors:
Group Author:
Published: U.S. Office of Coal Research; for sale by the Supt. of Docs., U.S. Govt. Print. Off.,
Publication Dates: 1972]
Call Number: TQ546/W521/
Group Author:
Published: U.S. Office of Coal Research; for sale by the Supt. of Docs., U.S. Govt. Print. Off.,
Publication Dates: 1972]
Call Number: TQ546/W521/
3
Main Authors:
Group Author: ;
Published: Dekker,
Publication Dates: c1975.
Call Number: TQ052/W467/
Group Author: ;
Published: Dekker,
Publication Dates: c1975.
Call Number: TQ052/W467/
4
Group Author:
Published: Addison-Wesley Pub. Co.,
Publication Dates: 1979.
Call Number: TQ52/W467/
; ; ; ;
Published: Addison-Wesley Pub. Co.,
Publication Dates: 1979.
Call Number: TQ52/W467/