Null-ABC

From Author Wars - https://authorwars.com/books/null-abc-1644811.html

Overview:

Title: Null-ABC
Author: H. Beam Piper
Year: 1972
Type: Short Fiction

Editions/Publications:

Unknown. Null-ABC (Unknown, H. Beam Piper, Ullstein, ISBN-10: 3548028888, DM 2.80, 141 pages, Paperback, Chapter Book)