Gaya APA
Hughes, John dkk. ().
Life Elementary .
:
National Geographic Learning.
Gaya Chicago
Hughes, John dkk.
Life Elementary.
:
National Geographic Learning,
.
Printed Book.
Gaya MLA
Hughes, John dkk.
Life Elementary.
:
National Geographic Learning,
.
Printed Book.
Gaya Turabian
Hughes, John dkk.
Life Elementary.
:
National Geographic Learning,
.
Printed Book.