Gaya APA
Winkel, W., 2016-12-13, .
().
141000115
(
Textbook)
.
600:
2016-12-13.
Gaya MLA
Winkel, W.S.., 2016-12-13, .
"141000115".
Textbook
600:
2016-12-13,
.
615.1ANI i 2.