Dr. Franklyn M. Branley. (1998). "Day Light, Night Light: Where Light Comes From (Let's-Read-and-Find-Out Science 2)" (Revised.). HarperCollins.
Chicago-čujuhus (17. p.)Dr. Franklyn M. Branley. "Day Light, Night Light: Where Light Comes From (Let's-Read-and-Find-Out Science 2)". Revised. HarperCollins, 1998.
MLA-čujuhus (9. p.)Dr. Franklyn M. Branley. "Day Light, Night Light: Where Light Comes From (Let's-Read-and-Find-Out Science 2)". Revised. HarperCollins, 1998.
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