8080/Z80 Assembly Language: Techniques for Improved Programming
John Wiley & Sons
1981, English | 
The Art of Computer Programming, Volume 2: Seminumerical Algorithms (2nd Edition)
Addison Wesley
1981, English | 
The Fifty Dollar and Up Underground House Book
Mole Publishing Company
1981, English | 
The Alexander Technique
Bantam
1981, English |
Software Development Handbook
Texas Instruments
1981, English | 
Theory of Relativity
Dover Publications
1981, English | 
The basic handbook: Encyclopedia of the basic computer language
Compusoft
1981, English | 
How to Win Friends & Influence People (Revised)
Simon & Schuster
1981, English |
The Theory of Spinors
Dover Publications
1981, English |