Halpern, D. F. (1992). Enhancing thinking skills in the sciences and mathematics. Lawrence Erlbaum Associates.
Čikaški stil citiranja (17. izdanje)Halpern, Diane F. Enhancing Thinking Skills in the Sciences and Mathematics. Mahwah: Lawrence Erlbaum Associates, 1992.
MLA način citiranja (9. izdanje)Halpern, Diane F. Enhancing Thinking Skills in the Sciences and Mathematics. Lawrence Erlbaum Associates, 1992.
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