441221 Marquard, W. H., & Birchard, B. (2007). Wal-smart: What it really takes to profit in a Wal-mart world. New York : McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)441221 Marquard, William H., agus Bill Birchard. Wal-smart: What It Really Takes to Profit in a Wal-mart World. New York : McGraw-Hill, 2007.
Lua MLA (9ú heag.)441221 Marquard, William H., agus Bill Birchard. Wal-smart: What It Really Takes to Profit in a Wal-mart World. New York : McGraw-Hill, 2007.
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