Gaya APA

Al-Gudhea, S., paul, J, P, G, G, J, F, R, J. (2007). Economics And Business . : Elsevier.

Gaya MLA

Al-Gudhea, Salim., paul, James, P., Gander,, Gurico, J., Ferreira,, Rodney, J.. "Economics And Business". : Elsevier, 2007. .