Barnes, R., Filer, D., & Milton, S. (1996). Acacia karroo: Monograph and annotated bibliography. Oxford Forestry Institute, University of Oxford.
Chicago-čujuhus (17. p.)Barnes, R., D. Filer, juo S. Milton. Acacia Karroo: Monograph and Annotated Bibliography. Oxford Forestry Institute, University of Oxford, 1996.
MLA-čujuhus (9. p.)Barnes, R., et al. Acacia Karroo: Monograph and Annotated Bibliography. Oxford Forestry Institute, University of Oxford, 1996.
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