Cita APA (7th ed.)

Sumner, M. (2012). Enterprise Resource Planning. Pearson Education India Pvt. Ltd.

Cita Chicago (17th ed.)

Sumner, Mary. Enterprise Resource Planning. New Delhi: Pearson Education India Pvt. Ltd, 2012.

Cita MLA (9th ed.)

Sumner, Mary. Enterprise Resource Planning. Pearson Education India Pvt. Ltd, 2012.