. . . "Illustrates the essential role of coal in the industrial revolution and explains how this vital resource is mined and used in today's world." . . "Coal"@en . "Coal" . . . . . . . "Steenkool" . . "Juvenile works"@en . "Juvenile works" . "Describes what coal is, where it is found, how it is used to produce energy, and the effect of burning coal on the environment."@en . . . .