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Gaya APA
The Book of Popular Science Vol.7. (1973).
Philippines:
Grolier International, Inc ,.
Gaya Chicago
The Book of Popular Science Vol.7.
.
Philippines:
Grolier International, Inc ,,
1973.
Text.
Gaya MLA
The Book of Popular Science Vol.7.
.
Philippines:
Grolier International, Inc ,,
1973.
Text.
Gaya Turabian
The Book of Popular Science Vol.7.
Philippines:
Grolier International, Inc ,,
1973.
Print.