Walker, R. B., & Woodgate, D. R. (1933). Principles and practice of industrial assurance. Sir Isaac Pitman & sons.
Citazione stile Chigago Style (17a edizione)Walker, Robert Brooks, e Donald Richard Woodgate. Principles and Practice of Industrial Assurance. London: Sir Isaac Pitman & sons, 1933.
Citatione MLA (8a ed.)Walker, Robert Brooks, e Donald Richard Woodgate. Principles and Practice of Industrial Assurance. Sir Isaac Pitman & sons, 1933.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.