Gaya APA
Bell, Thelma Harrington, Bell, Corydon. (1967).
The Riddle of time (3rd ed).
New York:
The Viking.
Gaya Chicago
Bell, Thelma Harrington, Bell, Corydon.
The Riddle of time.
3rd ed
New York:
The Viking,
1967.
Text.
Gaya MLA
Bell, Thelma Harrington, Bell, Corydon.
The Riddle of time.
3rd ed
New York:
The Viking,
1967.
Text.
Gaya Turabian
Bell, Thelma Harrington, Bell, Corydon.
The Riddle of time.
3rd ed
New York:
The Viking,
1967.
Print.