Answer:
B). Bartlett.
Step-by-step explanation:
As per the question, a book by John Bartlett could be used to pinpoint a quotation as the other two are used for different purposes. A book by Webster usually includes dictionaries while Roget offers 'Thesaurus'. Thus, option B would be the correct answer as Bartlett proposes a wide collection of quotations in a chronological order that may assist to find or locate a quotation.