Gaya APA
The Book of Popular Science Vol.9. (1971).
London:
Grolier International, Inc ,.
Gaya Chicago
The Book of Popular Science Vol.9.
Volume 9.
London:
Grolier International, Inc ,,
1971.
Text.
Gaya MLA
The Book of Popular Science Vol.9.
Volume 9.
London:
Grolier International, Inc ,,
1971.
Text.
Gaya Turabian
The Book of Popular Science Vol.9.
London:
Grolier International, Inc ,,
1971.
Print.