Gaya APA
Digest, Reader'S. (1981).
Laughter, The Best Medicine .
New York:
Berkley Books.
Gaya Chicago
Digest, Reader'S.
Laughter, The Best Medicine.
New York:
Berkley Books,
1981.
.
Gaya MLA
Digest, Reader'S.
Laughter, The Best Medicine.
New York:
Berkley Books,
1981.
.
Gaya Turabian
Digest, Reader'S.
Laughter, The Best Medicine.
New York:
Berkley Books,
1981.
.