Brown, S. E. (2004). Bubbles, rainbows, and worms: Science experiments for pre-school children (Rev. ed.). Gryphon House.
Čikaški stil citiranja (17. izdanje)Brown, Sam Ed. Bubbles, Rainbows, and Worms: Science Experiments for Pre-school Children. Rev. ed. Beltsville, Md: Gryphon House, 2004.
MLA način citiranja (9. izdanje)Brown, Sam Ed. Bubbles, Rainbows, and Worms: Science Experiments for Pre-school Children. Rev. ed. Gryphon House, 2004.
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