Gaya APA
Agustino, D., 2017-09-20, .
().
1242100917
(
Textbook)
.
600:
2017-09-20.
Gaya MLA
Agustino, Dio., 2017-09-20, .
"1242100917".
Textbook
600:
2017-09-20,
.
615.19 Sir t 1.