Cumberland, K. B. (1947). Soil erosion in New Zealand: A geographic reconnaissance. Whitcombe and Tombs.
Citazione stile Chigago Style (17a edizione)Cumberland, Kenneth B. Soil Erosion in New Zealand: A Geographic Reconnaissance. Christchurch: Whitcombe and Tombs, 1947.
Citatione MLA (9a ed.)Cumberland, Kenneth B. Soil Erosion in New Zealand: A Geographic Reconnaissance. Whitcombe and Tombs, 1947.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.