Manova, K., & Zhang, Z. (2017). Multi-product firms and product quality. Elsevier.
Lua i Stíl Chicago (17ú heag.)Manova, K., agus Z. Zhang. Multi-product Firms and Product Quality. Elsevier, 2017.
Lua MLA (9ú heag.)Manova, K., agus Z. Zhang. Multi-product Firms and Product Quality. Elsevier, 2017.
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