Cita APA (7a ed.)
Wirshing, J. R., & Wirshing, R. H. (1985). Theory and Problem of Introductory Surveying. McGraw-Hill.
Cita Chicago Style (17a ed.)
Wirshing, James R., y Roy H. Wirshing. Theory and Problem of Introductory Surveying. New York: McGraw-Hill, 1985.
Cita MLA (9a ed.)
Wirshing, James R., y Roy H. Wirshing. Theory and Problem of Introductory Surveying. McGraw-Hill, 1985.
Precaución: Estas citas no son 100% exactas.