Smyth, Henry F.; Carpenter, Charles P.; Weil, Carrol S.; Pozzani, Urbano C.; Striegel, Jean A.; Nycum, Judith S. (1969). "Range-Finding Toxicity Data: List VII". American Industrial Hygiene Association Journal. 30 (5): 470–476. doi:10.1080/00028896909343157. PMID5823428.
Smyth, Henry F.; Carpenter, Charles P.; Weil, Carrol S.; Pozzani, Urbano C.; Striegel, Jean A.; Nycum, Judith S. (1969). "Range-Finding Toxicity Data: List VII". American Industrial Hygiene Association Journal. 30 (5): 470–476. doi:10.1080/00028896909343157. PMID5823428.