Andy, P., Bryan, L., & Stover, K. (2021). Usborne Economics for Beginners. Usborne.
Lua i Stíl Chicago (17ú heag.)Andy, Prentice, Lara Bryan, agus Kellan Stover. Usborne Economics for Beginners. London: Usborne, 2021.
Lua MLA (9ú heag.)Andy, Prentice, et al. Usborne Economics for Beginners. Usborne, 2021.
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