This textbook is an affordable alternative to the newer edition.
Product Tag: 16 Oz
The MIT Guide to Science and Engineering Communication: Second Edition
A nice touch in this textbook is the online access code included with purchase.
Rare TWT/TWTA Handbook RF Microwave Amplifier Guide Boeing Electron Dynamic
A nice touch here is the set of checklists for common tasks.
TWT TWTA Handbook RF Microwave Amplifier Guide Hughes Electron Dynamic Rare
What I like about this handbook is the no-nonsense, straight-to-the-point style.
The C Programming Language by Brian Kernighan (1988, Trade FREESHIP
A nice touch in this textbook is the index of terms with page numbers.