APA (7e ed.) Bronvermelding

O'Riordan, T., & Sewell, W. R. D. (1981). Project appraisal and policy review. John Wiley.

Chicago (17e ed.) Bronvermelding

O'Riordan, Timothy, en W. R. Derrick Sewell. Project Appraisal and Policy Review. Chichester: John Wiley, 1981.

MLA (9e ed.) Bronvermelding

O'Riordan, Timothy, en W. R. Derrick Sewell. Project Appraisal and Policy Review. John Wiley, 1981.