Rankine, D. H. Acquisition Essentials. Pearson Education UK.
Cita Chicago (17th ed.)Rankine, Denzil; Howson. Acquisition Essentials. Pearson Education UK.
Cita MLA (8th ed.)Rankine, Denzil; Howson. Acquisition Essentials. Pearson Education UK.
Atenció: Aquestes cites poden no estar 100% correctes.