Cita APA (7a ed.)
Tripathi, R. P., & Singh, H. (1993). Soil erosion and conservation. New Age International.
Cita Chicago Style (17a ed.)
Tripathi, R. P., y H.P Singh. Soil Erosion and Conservation. Kolkata: New Age International, 1993.
Cita MLA (9a ed.)
Tripathi, R. P., y H.P Singh. Soil Erosion and Conservation. New Age International, 1993.
Precaución: Estas citas no son 100% exactas.