Booth, Angela 1949- Improve your memory in 21 days / Improve your memory in twenty one days Angela Booth. - Sydney : Prentice Hall, 1997. - xiii, 144 p. : ill. ; 24 cm. - Workwise . Includes index. Bibliography. ISBN: 0724806407 Subjects--Topical Terms: Mnemonics.Memory. LC Class. No.: BF385 / .B66 1997 Dewey Class. No.: 153.14