Gaya APA

central, B. (2017). BMC Public Health vol, 2017 buku 2 (vol. 2017 buku 2). : BioMed Cetral.

Gaya MLA

central, B.. BMC Public Health vol, 2017 buku 2. vol. 2017 buku 2 : BioMed Cetral, 2017. Text.