UNEP & The Regency corporation Limited. (1998). Sustainable business: Economic developement and enviromentally sound technologies. Malawi development corporation.
Tohutoru Kātū Chicago (17th ed.)UNEP me The Regency corporation Limited. Sustainable Business: Economic Developement and Enviromentally Sound Technologies. Blantyre: Malawi development corporation, 1998.
Tohutoro MLA (9th ed.)UNEP me The Regency corporation Limited. Sustainable Business: Economic Developement and Enviromentally Sound Technologies. Malawi development corporation, 1998.
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