GWYNNE PETER/ JEFFRIES, B. (1998). ILLUSTRATED ENCY OF ENERGY&PHYSICS. TIME LIFE PUBLICATIONS.
Chicago-viite (17. p.)GWYNNE PETER/ JEFFRIES, BRIAN. ILLUSTRATED ENCY OF ENERGY&PHYSICS. ASIA: TIME LIFE PUBLICATIONS, 1998.
MLA-viite (9. p.)GWYNNE PETER/ JEFFRIES, BRIAN. ILLUSTRATED ENCY OF ENERGY&PHYSICS. TIME LIFE PUBLICATIONS, 1998.
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