Gaya APA

al.], A, I, R, [. (2013). Occurrence and sources of aliphatic hydrocarbons in surface soils from Riyadh city, Saudi Arabia ((2013) 14). : King Saud University.

Gaya MLA

al.], Ahmed, I., Rushdi, [et. "Occurrence and sources of aliphatic hydrocarbons in surface soils from Riyadh city, Saudi Arabia". (2013) 14 : King Saud University, 2013. e-journal.