Isaac Asimov, Martin H. Greenberg, Charles Waugh, Robert Silverberg, Lloyd Biggle Jr, J.-H. Rosny, aîné, Theodore L. Thomas, William Tenn, Roger Zelazny, F. L. Wallace, A. E. van Vogt, Philip José Farmer, Murray Leinster, Michael Shaara · First published 1988
![Placeholder cover for An atlas of the sunspot spectrum from 470 to 1233 cm⁻¹ (8.1 to 21 [micrometers]) and the photospheric spectrum from 460 to 630 cm⁻¹ (16 to 22 [micrometers])](/images/parchment.webp)
