Gaya APA
The Book of Knowledge : The Children's Encyclopedia. Volume 17. (New York : Grolier I).
:
New York : Grolier Incoprorated, 1962.
Gaya MLA
The Book of Knowledge : The Children's Encyclopedia. Volume 17.
.
:
New York : Grolier Incoprorated, 1962,
New York : Grolier I.
Text.