Ralph J. McCracken

Soil genesis and classification (4th ed.)

Ames: Iowa State University Press.

Soil genesis and classification (3rd ed.)

Ames: Iowa State University Press.

UNDISTURBED SOILS, LANDSCAPES, AND VEGETATION IN A NORTH-CAROLINA PIEDMONT VIRGIN FOREST

SOIL SCIENCE SOCIETY OF AMERICA JOURNAL, 53(4), 1146–1152.

Soil genesis and classification (2nd ed.)

Ames: Iowa State University Press.

Soil genesis and classification (1st ed.)

Ames: Iowa State University Press.

Soils of the Hayesville, Cecil and Pacolet series in southern Appalachian and Piedmont regions of the United States

In Soils of the Hayesville, Cecil and Pacolet series in southern Appalachian and Piedmont regions of the United States (p. 60). Raleigh, N.C.: North Carolina State University.