Whittaker, J. C., & (Firm), P. (2024). American flintknappers. Austin.
Čikaški stil citiranjaWhittaker, John C., i ProQuest (Firm). American Flintknappers. Austin, 2024.
MLA način citiranjaWhittaker, John C., i ProQuest (Firm). American Flintknappers. Austin, 2024.
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