Cita APA (7th ed.)

Kahnert, F., Germidis, D. A., & Stier, H. (1971). Aid tying and export of nitrogenous fertilisers from the Persian Gulf. Development Centre of the Organisation for Economic Co-operation and Development.

Cita Chicago (17th ed.)

Kahnert, F., Dimitri A. Germidis, i H. Stier. Aid Tying and Export of Nitrogenous Fertilisers from the Persian Gulf. [Paris]: Development Centre of the Organisation for Economic Co-operation and Development, 1971.

Cita MLA (9th ed.)

Kahnert, F., et al. Aid Tying and Export of Nitrogenous Fertilisers from the Persian Gulf. Development Centre of the Organisation for Economic Co-operation and Development, 1971.