Feldman, E. B. (1979). ENERGY SAVING HANDBOOK FOR HOMES BUSINESSES AND INSTITUTIONS: 1000 WAYS TO CONSERVE OUR MOST ESSENTIAL RESOURCE. Frederick Fell Publishers.
Citace podle Chicago (17th ed.)Feldman, Edwin B. ENERGY SAVING HANDBOOK FOR HOMES BUSINESSES AND INSTITUTIONS: 1000 WAYS TO CONSERVE OUR MOST ESSENTIAL RESOURCE. New York: Frederick Fell Publishers, 1979.
Citace podle MLA (9th ed.)Feldman, Edwin B. ENERGY SAVING HANDBOOK FOR HOMES BUSINESSES AND INSTITUTIONS: 1000 WAYS TO CONSERVE OUR MOST ESSENTIAL RESOURCE. Frederick Fell Publishers, 1979.
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