APA Style
Sagan, Carl, Leonard, Jonathan Norton. (1974).
Planet / Carl Sagan (Cet.4).
Nederland:
Time Life International.
Chicago Style
Sagan, Carl, Leonard, Jonathan Norton.
Planet / Carl Sagan.
Cet.4
Nederland:
Time Life International,
1974.
Text.
MLA Style
Sagan, Carl, Leonard, Jonathan Norton.
Planet / Carl Sagan.
Cet.4
Nederland:
Time Life International,
1974.
Text.
Turabian Style
Sagan, Carl, Leonard, Jonathan Norton.
Planet / Carl Sagan.
Cet.4
Nederland:
Time Life International,
1974.
Print.