CHURCHILL, R. .. E. L. (2000). 365 SIMPLE EXPERIMENTS WITH EVERYDAY MATERIALS.
Lua i Stíl Chicago (17ú heag.)CHURCHILL, RICHARD . E/ LOESCHNIG. 365 SIMPLE EXPERIMENTS WITH EVERYDAY MATERIALS. NEW YORK, 2000.
Lua MLA (9ú heag.)CHURCHILL, RICHARD . E/ LOESCHNIG. 365 SIMPLE EXPERIMENTS WITH EVERYDAY MATERIALS. 2000.
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