Template:Smith, Cole & van Wyk, 1993
- Smith, G.F., Cole, D.T., & van Wyk, B.-E. 1993. Bechuanaland: a misunderstood geographical name; and the type locality of Haworthia tenuifolia (Asphodelaceae: Alooideae). Taxon 42(2): 369–371. DOI: 10.2307/1223146
JSTOR 
