United States. Dept. of Agriculture. (1975). Shopper's guide: How to get the most for your money. Barron's Educational Series.
Cita Chicago (17th ed.)United States. Dept. of Agriculture. Shopper's Guide: How to Get the Most for Your Money. Woodbury, N.Y: Barron's Educational Series, 1975.
Cita MLA (9th ed.)United States. Dept. of Agriculture. Shopper's Guide: How to Get the Most for Your Money. Barron's Educational Series, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.