Gaya APA

Pelczar, M, J., 2017-09-14, . (). 1212160917 (Textbook). : 2017-09-14.

Gaya MLA

Pelczar, Michael, J.., 2017-09-14, . "1212160917". Textbook : 2017-09-14, . 611.018 1 YUN b 1.