National Botanical Institute (South Africa) (Corporate Name)

Flora of southern Africa, v. 5, pt. 3 (1992): t.p. (National Botanical Institute) verso of t.p. (NBI; Pretoria, Republic of South Africa)

National Botanical Institute ... annual review, 1990/91 verso t.p. (National Botanical Institute, an autonomous state-aided institution, created by amalgamation of National Botanic Gardens and Botanical Research Institute in April 1989)

National Botanical Institute WWW Home page, Oct. 27, 2004 (As of 1 Sept. 2004, the National Botanical Institute has become the South African National Biodiversity Institute (SANBI) in terms of the National Environmental Management: Biodiversity Act 10 of 2004)

Flora of southern Africa, v. 16, pt. 3, fasc. 6 (1988): t.p. (Botanical Research Institute, Department of Agriculture and Water Supply)