APA (7e ed.) Bronvermelding

KIRKBY, M., & MORGAN, R. (1980). Soil erosion. john Wiley and Sons.

Chicago (17e ed.) Bronvermelding

KIRKBY, M.J, en R.P.C MORGAN. Soil Erosion. Chichester: john Wiley and Sons, 1980.

MLA (9e ed.) Bronvermelding

KIRKBY, M.J, en R.P.C MORGAN. Soil Erosion. john Wiley and Sons, 1980.