Gaya APA
Wiffen, P., 2016-10-12, .
().
1005141016
(
Textbook)
.
000:
2016-10-12.
Gaya MLA
Wiffen, Philip., 2016-10-12, .
"1005141016".
Textbook
000:
2016-10-12,
.
001.422 072 1 TAP s 2.