Gaya APA
Incorporated, G.
(1993).
The New Book of Knowledge vol. 1
(
1)
.
U.S. Patent Office:
grolier publushing company.
Gaya MLA
Incorporated, Grolier.
"The New Book of Knowledge vol. 1".
1
U.S. Patent Office:
grolier publushing company,
1993.
Text.