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- [7] THE BLACKLAND SOILS OF NORTH-CAROLINA - THEIR CHARACTERISTICS AND MANAGEMENT FOR AGRICULTURE [J]. NORTH CAROLINA AGRICULTURAL RESEARCH SERVICE TECHNICAL BULLETIN, 1981, (270): : 1 - 70
- [10] NORTH-CAROLINA DERMATOLOGIST [J]. JOURNAL OF THE AMERICAN ACADEMY OF DERMATOLOGY, 1980, 3 (06) : 649 - 650