Gaya APA

2017-09-12, ., 2017-01-03, . (). 257090415 (Textbook). 600: 2017-01-03.

Gaya MLA

2017-09-12, ., 2017-01-03, . "257090415". Textbook 600: 2017-01-03, . 615.321 HEI f.