Spangler, D. G. (1994). Soil survey of Harnett County, North Caroline. The Service.
Chicago Style (17th ed.) CitationSpangler, Daniel G. Soil Survey of Harnett County, North Caroline. [Washington, D.C.?]: The Service, 1994.
MLA (9th ed.) CitationSpangler, Daniel G. Soil Survey of Harnett County, North Caroline. The Service, 1994.
Warning: These citations may not always be 100% accurate.