Technical Bulletin - North Carolina Satate Univrsity (Raleigh, North Carolina North Carolina Satate Univrsity, 1961)
-Existencias: 1961-1969 no. 145, 153; 1969-1970 no. 192, 194-197, 200-202; 1970-1975 no. 204-205, 1973-1974 no. 219-220, 226-227; 1975-1976 no. 230, 233, 236, 238; 1978-1983 no. 240, 246, 250-253, 256-278; 1994-1995 no. 306-307