Provedení Roget's 21st century thesaurus in dictionary form: the essential reference for home, school, or office (2005)

KIPFER, Barbara Ann. Roget's 21st century thesaurus in dictionary form: the essential reference for home, school, or office. Edited by the Princeton Language Institute; Barbara Ann Kipfer, head lexicographer. 3rd ed. New York: Delta Trade Paperbacks, © 2005. xii, 962 s. 21st Century Reference. ISBN 0-385-33895-3 (brož.). ISBN 978-0-385-33895-0.