Παραπομπή APA

Lal R, Blum W H, Valentine C, & Stewart B A. (2014). Methods for assessment of soil degradation. CRC Press.

Παραπομπή Chicago Style

Lal R, Blum W H, Valentine C, και Stewart B A. Methods for Assessment of Soil Degradation. New York: CRC Press, 2014.

Παραπομπή MLA

Lal R, et al. Methods for Assessment of Soil Degradation. CRC Press, 2014.