BONNET BOB & KEEN DAN. (1995). SCIENCE FAIR PROJECTS: CHEMISTRY. GOODWILL PUBLISHING HOUSE.
Chicago-čujuhus (17. p.)BONNET BOB & KEEN DAN. SCIENCE FAIR PROJECTS: CHEMISTRY. NEW DELHI: GOODWILL PUBLISHING HOUSE, 1995.
MLA-čujuhus (9. p.)BONNET BOB & KEEN DAN. SCIENCE FAIR PROJECTS: CHEMISTRY. GOODWILL PUBLISHING HOUSE, 1995.
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