Typescript of unpublished work: 'Ancient and Modern History of Irrigation in Ceylon: Being a collection of notes from various sources relative to the ancient and modern irrigation works of Ceylon', with photographs, by Leonard T Burgess, of the Irrigation Department, Ceylon, 1932
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ron aantekeningen
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Resources development
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Resources development
- UF Natural resources development
- UF Mise en valeur des ressources naturelles
- UF Desarrollo de los recursos
- UF Fomento de recursos naturales
- UF Valoración de recursos