Research Catalog

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Coal	1275	2697
Synthetic fuels -- Congresses	-	42
Synthetic fuels	35	184
Diesel motor	66	679
Diesel motor -- Alternative fuels -- Congresses	-	6
Diesel motor -- Alternative fuels	8	28
Waste products as fuel	13	102
Waste products as fuel -- Congresses	-	24
Power resources -- Congresses	1	312
Coal trade	659	1644

Subject Heading "Coal -- Congresses"