Duangporn Beokhaimook. (1969). A study of manpower planning in relation to the needs of primary and secondary education in Thailand. s.n.].
Cita Chicago (17th ed.)Duangporn Beokhaimook. A Study of Manpower Planning in Relation to the Needs of Primary and Secondary Education in Thailand. [Quezon City: s.n.], 1969.
Cita MLA (9th ed.)Duangporn Beokhaimook. A Study of Manpower Planning in Relation to the Needs of Primary and Secondary Education in Thailand. s.n.], 1969.
Atenció: Aquestes cites poden no estar 100% correctes.