Gaya APA
How things Work. (1983).
Washington:
National Geographic.
Gaya Chicago
How things Work.
.
Washington:
National Geographic,
1983.
Printed Book.
Gaya MLA
How things Work.
.
Washington:
National Geographic,
1983.
Printed Book.
Gaya Turabian
How things Work.
Washington:
National Geographic,
1983.
Printed Book.