Gaya APA
Discover Science. (1991).
Illionis:
Scott, Foresman and Company.
Gaya Chicago
Discover Science.
.
Illionis:
Scott, Foresman and Company,
1991.
Printed Book.
Gaya MLA
Discover Science.
.
Illionis:
Scott, Foresman and Company,
1991.
Printed Book.
Gaya Turabian
Discover Science.
Illionis:
Scott, Foresman and Company,
1991.
Printed Book.