Cita APA (7th ed.)

Langley, K. M. (1971). A note on the economics of the international petroleum industry and the economy of the Philippines. Institute of Economic Development and Research, School of Economics, University of the Philippines.

Cita Chicago (17th ed.)

Langley, Kathleen M. A Note on the Economics of the International Petroleum Industry and the Economy of the Philippines. [Quezon City]: Institute of Economic Development and Research, School of Economics, University of the Philippines, 1971.

Cita MLA (9th ed.)

Langley, Kathleen M. A Note on the Economics of the International Petroleum Industry and the Economy of the Philippines. Institute of Economic Development and Research, School of Economics, University of the Philippines, 1971.