FLEISHMAN , E. E. (1995). EARTH'S CRUST: BE A SCIENTIST SERIES.
Chicago-čujuhus (17. p.)FLEISHMAN , E. ED. EARTH'S CRUST: BE A SCIENTIST SERIES. 1995.
MLA-čujuhus (9. p.)FLEISHMAN , E. ED. EARTH'S CRUST: BE A SCIENTIST SERIES. 1995.
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