Gaya APA
DONG, Eugene. (1978).
Heart beat .
New York:
McGraw-Hill.
Gaya Chicago
DONG, Eugene.
Heart beat.
New York:
McGraw-Hill,
1978.
Text.
Gaya MLA
DONG, Eugene.
Heart beat.
New York:
McGraw-Hill,
1978.
Text.
Gaya Turabian
DONG, Eugene.
Heart beat.
New York:
McGraw-Hill,
1978.
Print.