APA (7th ed.) Citation

Gonzalez Rodriguez, H. (1989). A quantitative description of the sorghum root system. [publisher not identified].

Chicago Style (17th ed.) Citation

Gonzalez Rodriguez, Humberto. A Quantitative Description of the Sorghum Root System. [Place of publication not identified]: [publisher not identified], 1989.

MLA (9th ed.) Citation

Gonzalez Rodriguez, Humberto. A Quantitative Description of the Sorghum Root System. [publisher not identified], 1989.