Leapfrog
From Author Wars - https://authorwars.com/books/leapfrog-82213.html
Overview:
- Title: Leapfrog
- Author: James P. Hogan
- Year: 1989
- Type: Short Fiction
Editions/Publications:
- Unknown. Alternate Empires (Unknown, James P. Hogan, Bantam Books, ISBN-10: 0553278452, $4.50, ix+291 pages, Paperback, Anthology)
- Unknown. Rockets, Redheads & Revolution (Unknown, James P. Hogan, Baen Books, ISBN-10: 0671578073, $6.99, 343 pages, Paperback, Collection)
- Unknown. What Might Have Been: Volumes 1 & 2: Alternate Empires / Alternate Heroes (Unknown, James P. Hogan, Bantam Spectra / SFBC, $12.98, 542 pages, Hardcover, Omnibus)
- Unknown. What Might Have Been Volume 1: Alternate Empires (Unknown, James P. Hogan, BP Books / ibooks, ISBN-10: 074348729X, $11.95, ix+261 pages, Trade Paperback, Anthology)