Gaya APA
Restak, Richard. (1997).
Older & Wiser How to Maintain Peak Mental Ability for as Long as You Live .
New York:
Simon & Schuster.
Gaya Chicago
Restak, Richard.
Older & Wiser How to Maintain Peak Mental Ability for as Long as You Live.
New York:
Simon & Schuster,
1997.
Text.
Gaya MLA
Restak, Richard.
Older & Wiser How to Maintain Peak Mental Ability for as Long as You Live.
New York:
Simon & Schuster,
1997.
Text.
Gaya Turabian
Restak, Richard.
Older & Wiser How to Maintain Peak Mental Ability for as Long as You Live.
New York:
Simon & Schuster,
1997.
Print.