APA (7th ed.) Citation

Khalil, A. A. (1990). Genesis and ecology of the Vertisols of Eastern Sudan.

Chicago Style (17th ed.) Citation

Khalil, Ahmed Abdel. Genesis and Ecology of the Vertisols of Eastern Sudan. 1990.

MLA (9th ed.) Citation

Khalil, Ahmed Abdel. Genesis and Ecology of the Vertisols of Eastern Sudan. 1990.

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