Clark, D. -., & Jackson, J. E. (1973). Plane and geodetic surveying: By the late David Clark .Vol .1. Plane surveying (6th ed. (metric ed., S.I. units / /).). Constable.
Παραπομπή σε μορφή Chicago (17η εκδ.)Clark, David -1933, και J. E. Jackson. Plane and Geodetic Surveying: By the Late David Clark .Vol .1. Plane Surveying. 6th ed. (metric ed., S.I. units / /). London: Constable, 1973.
Παραπομπή σε μορφή MLA (8th εκδ.)Clark, David -1933, και J. E. Jackson. Plane and Geodetic Surveying: By the Late David Clark .Vol .1. Plane Surveying. 6th ed. (metric ed., S.I. units / /). Constable, 1973.
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