Ferguson, C. A. Returns to irrigation intensification in Philippine gravity systems.
Lua i Stíl Chicago (17ú heag.)Ferguson, Carol Anne. Returns to Irrigation Intensification in Philippine Gravity Systems.
Lua MLA (9ú heag.)Ferguson, Carol Anne. Returns to Irrigation Intensification in Philippine Gravity Systems.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.