Estopinal, S. V. (2009). A guide to understanding land surveys (3rd ed.). Wiley.
Cita Chicago (17th ed.)Estopinal, Stephen V. A Guide to Understanding Land Surveys. 3rd ed. Hoboken, N.J: Wiley, 2009.
Cita MLA (9th ed.)Estopinal, Stephen V. A Guide to Understanding Land Surveys. 3rd ed. Wiley, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.