21ST Century Dictionary of Acronyms 21st Century Reference

By Princeton Lang Inst

Roget s 21st century thesaurus in dictionary form

By Barbara Ann Kipfer

DICTIONARY OF COMPUTER TERMS 21st Century Reference

By Princeton Lang Inst

21st century guide to improving your writing

By Diane Zahler

21st century manual of style

By Barbara Ann Kipfer

Roget's 21ST Century

By Princeton Lang Inst, Barbara Ann Kipfer

Contains 450,000 synonyms and over one million word choices that features a revolutionary concept index and more.

21st Century Office Assistants Manual

By The Philip Lief Group

Webster's 21st Century Large Print Dictionary

By Princeton Lang Inst