Thung, Heng Liong, 1934- An Evaluation of the impact of a highway on a rural environmental in Thailand by aerial photographic methods [microform] / by Heng Liong Thung - Ann Arbor, Mich. : University Microfilms International, 1972 - 1 microfilm reel : positive ; 35 mm. Thesis (Ph.D.) - Cornell University, 1972 Subjects--Topical Terms: Transportation and state--Thailand