Depreciation practices of natural gas companies.
Classes A and B companies.

APA Citation

United States. Federal Power Commission. Depreciation practices of natural gas companies: Classes A and B companies. Washington, D.C.: U.S. Federal Power Commission .

MLA Citation

United States. Federal Power Commission. Depreciation Practices of Natural Gas Companies: Classes A And B Companies. Washington, D.C.: U.S. Federal Power Commission ,

Warning: These citations may not always be complete (especially for serials).