APA-viite

ITL educational solutions limited. (2005). Introduction to information technology: ITL educational solution limited. Pearson education( Singapore) Privet limited.

Chicago-tyylinen lähdeviittaus

ITL educational solutions limited. Introduction to Information Technology: ITL Educational Solution Limited. Delhi: Pearson education( Singapore) Privet limited, 2005.

MLA-viite

ITL educational solutions limited. Introduction to Information Technology: ITL Educational Solution Limited. Pearson education( Singapore) Privet limited, 2005.