Cita APA (7a ed.)

(2006). Abstracts. 18th World congress of soil science (July 9-15, 2006, Philadelphia).

Cita Chicago Style (17a ed.)

Abstracts. 18th World Congress of Soil Science (July 9-15, 2006, Philadelphia). 2006.

Cita MLA (9a ed.)

Abstracts. 18th World Congress of Soil Science (July 9-15, 2006, Philadelphia). 2006.