Princeton Language Institute

title	media type	ISBN-13	year of publica- tion	other author(s)
21st Century Dictionary of Quotations	Paperback	978-0-440-21447-2	1993
21st Century Dictionary of Slang	"	978-0-440-21551-6	1994
21st Century Grammar Handbook	"	978-0-440-61422-7	1995
21st Century Grammar Handbook	"	978-0-440-21508-0	1993
21st Century Synonym and Antonym Finder	"	978-0-440-21323-9	1993
21st Century Synonym and Antonym Finder	Library Binding	978-0-7807-3252-0	1993	Barbara Ann Kipfer PhD
Never Misspell That Word Again!: The 21st Centruy Misspellers Dictionary	Paperback	978-0-7434-9794-7	2006
Roget's 21st Century Thesaurus, Third Edition	"	978-0-440-24269-7	2005
The Princeton Language Institute 21st Century Dictionary of Acronyms & Abbreviations	"	978-0-7434-8687-3	2004
The Spell Well Dictionary for the 21st Century	"	978-0-7434-8699-6	2004
Webster's 21st Century Large Print Dictionary	"	978-0-385-31643-9	1996	Philip Lief Group · Barbara Ann Kipfer