Provides a comprehensive overview of the U.S. coal industry over 20 years, with emphasis on the major changes that occurred, their causes, and their effects. Presents and analyzes data in terms of trends in production, consumption, distribution, and prices. Profitability of major energy companies' coal operations is also tracked. Over 100 charts, tables, graphs and photos.This application made possible the development of modern open-circuit air scuba gear (Larson 1959). In 1939, Dr. Christian Lambertsen began the development of a series of three patented forms of oxygen rebreathing equipment for neutralanbsp;...
|Title||:||The U. S. Coal Industry, 1970-1990|
|Author||:||Michelle P Brown|
|Publisher||:||DIANE Publishing - 1992-01-01|