Webb, D., Wood, P., Smith, J., & Henman, G. (1984). A guide to species selection for tropical and sub-tropical plantations. Commenwealth Forestry Institute, University of Oxford.
Chicago-referens (17:e uppl.)Webb, D., P. Wood, J. Smith, och G. Henman. A Guide to Species Selection for Tropical and Sub-tropical Plantations. Commenwealth Forestry Institute, University of Oxford, 1984.
MLA-referens (9:e uppl.)Webb, D., et al. A Guide to Species Selection for Tropical and Sub-tropical Plantations. Commenwealth Forestry Institute, University of Oxford, 1984.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.