Gaya APA
Fahn, A., 2017-07-03, .
().
836150216
(
Textbook)
.
500:
2017-07-03.
Gaya MLA
Fahn, A., 2017-07-03, .
"836150216".
Textbook
500:
2017-07-03,
.
579 HAS P 2.