Cruz, R. V. O. (1990). Landuse suitability assessment and land capability classification in Ibulao watershed, Philippines. UMI Dissertation Services.
Citace podle Chicago (17th ed.)Cruz, Rex Victor Oafallas. Landuse Suitability Assessment and Land Capability Classification in Ibulao Watershed, Philippines. Ann Arbor, Mich: UMI Dissertation Services, 1990.
Citace podle MLA (9th ed.)Cruz, Rex Victor Oafallas. Landuse Suitability Assessment and Land Capability Classification in Ibulao Watershed, Philippines. UMI Dissertation Services, 1990.
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