Παραπομπή σε μορφή APA (7η εκδ.)

Emmons, E. (1860). Geological and agricultural survey: To his Excellency, John W. Ellis, Governor of North-Carolina. John Spelman, Printer to the State.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Emmons, Ebenezer. Geological and Agricultural Survey: To His Excellency, John W. Ellis, Governor of North-Carolina. [Raleigh, N.C.]: John Spelman, Printer to the State, 1860.

Παραπομπή σε μορφή MLA (8th εκδ.)

Emmons, Ebenezer. Geological and Agricultural Survey: To His Excellency, John W. Ellis, Governor of North-Carolina. John Spelman, Printer to the State, 1860.