- Barker, W. J., and W. C. Nettles. 1954. Controlling pine beetles in South Carolina woodlands. Clemson Agricultural College, Extension Service, Circular 239. 6 p.
- Flory, C. H., W. C. Nettles, and W. J. Barker. 1955. Forest insects and diseases of South Carolina trees [Southern pine beetle, p. 10-12]. Clemson Agricultural College of South Carolina, State Commission of Forestry, Extension Bulletin 116. 40 p.
- Nettles, W. C. 1956. Insect and plant disease handbook South Carolina . Clemson University, College of Agriculture, Bulletin 114:116.