APA (7th ed.) Citation

Siekmann. (1991). National contingents in United Nations peace-keeping forces. Martinus Nijhoff Publishers.

Chicago Style (17th ed.) Citation

Siekmann. National Contingents in United Nations Peace-keeping Forces. London: Martinus Nijhoff Publishers, 1991.

MLA (8th ed.) Citation

Siekmann. National Contingents in United Nations Peace-keeping Forces. Martinus Nijhoff Publishers, 1991.

Warning: These citations may not always be 100% accurate.