Schofield, W., & Breach, M. (2007). Engineering surveying (6th ed.). Elsevier.
Cita Chicago (17th ed.)Schofield, W., i M. Breach. Engineering Surveying. 6th ed. Amsterdam: Elsevier, 2007.
Cita MLA (9th ed.)Schofield, W., i M. Breach. Engineering Surveying. 6th ed. Elsevier, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.