Summary of trade and tariff information : building papers and roofing shingles, TSUS items 251.05 and 256.90(pt.)

Chicago citation style
Summary of trade and tariff information : building papers and roofing shingles, TSUS items 251.05 and 256.90(pt.). [1981]. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/011419858. (Accessed December 16, 2018.)
APA citation style
([1981]) Summary of trade and tariff information : building papers and roofing shingles, TSUS items 251.05 and 256.90(pt.). Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/011419858
MLA citation style
Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/011419858>.
Note: These citations are programmatically generated and may be incomplete.