Gaya APA

Maretha, E, L., 2016-10-20, . (). 256070415 (Textbook). 600: 2016-10-20.

Gaya MLA

Maretha, Elizabeth, Lucky., 2016-10-20, . "256070415". Textbook 600: 2016-10-20, . 615.19 WIR k.