Gaya APA
DISCOVER SCIENCE. (1989).
Illinois:
Scott, Foresman and Company.
Gaya Chicago
DISCOVER SCIENCE.
.
Illinois:
Scott, Foresman and Company,
1989.
Printed Book.
Gaya MLA
DISCOVER SCIENCE.
.
Illinois:
Scott, Foresman and Company,
1989.
Printed Book.
Gaya Turabian
DISCOVER SCIENCE.
Illinois:
Scott, Foresman and Company,
1989.
Printed Book.