Cita APA (7th ed.)

Brown, M. (1988). World phosphates supply to the year 2000. OECD.

Cita Chicago (17th ed.)

Brown, Martin. World Phosphates Supply to the Year 2000. Paris: OECD, 1988.

Cita MLA (9th ed.)

Brown, Martin. World Phosphates Supply to the Year 2000. OECD, 1988.