File:Elementary astronomy; a beginner's text-book (IA elementaryastron00hold).pdf
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Size of this JPG preview of this PDF file: 380 × 599 pixels. Other resolutions: 152 × 240 pixels | 304 × 480 pixels | 714 × 1,125 pixels.
Original file (714 × 1,125 pixels, file size: 29.8 MB, MIME type: application/pdf, 482 pages)