APA način citiranja (7. izdanje)

Peneyra, Q. P. (2014). Biogas technology: Fuelling the future of agricultural development. Agriculture.

Čikaški stil citiranja (17. izdanje)

Peneyra, Queenie P. "Biogas Technology: Fuelling the Future of Agricultural Development." Agriculture 2014.

MLA način citiranja (9. izdanje)

Peneyra, Queenie P. "Biogas Technology: Fuelling the Future of Agricultural Development." Agriculture, 2014.