Commerce Clearing House. (1979). State tax handbook, as of October 1, 1979. Commerce Clearing House, Inc..
Lua i Stíl Chicago (17ú heag.)Commerce Clearing House. State Tax Handbook, as of October 1, 1979. Chic., Ill.: Commerce Clearing House, Inc., 1979.
Lua MLA (8ú heag.)Commerce Clearing House. State Tax Handbook, as of October 1, 1979. Commerce Clearing House, Inc., 1979.
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