Oxlade Chris. 150 Great science experiments. Lorenz Books.
Chicago-čujuhus (17. p.)Oxlade Chris. 150 Great Science Experiments. Lorenz Books.
MLA-čujuhus (9. p.)Oxlade Chris. 150 Great Science Experiments. Lorenz Books.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.