APA Style
HARDY, G.B.. (1961, 1968).
COUNTDOWN .
CHICAGO:
MOODY PRESS.
Chicago Style
HARDY, G.B..
COUNTDOWN.
CHICAGO:
MOODY PRESS,
1961, 1968.
Text.
MLA Style
HARDY, G.B..
COUNTDOWN.
CHICAGO:
MOODY PRESS,
1961, 1968.
Text.
Turabian Style
HARDY, G.B..
COUNTDOWN.
CHICAGO:
MOODY PRESS,
1961, 1968.
Print.