Nayōbāi læ māttrakān kānphatthanā singwǣtlō̜m hǣng Chāt.
Publisher: Samnakngān Khana Kammakān Singwǣtlō̜m hǣng Chāt
Published: 1981
Place of publication: [Bangkok]
Language: tha
Number of pages: 186
Description: On policy of National Environment Board.
Notes: In Thai.