Garrod, B., Garrod, B., & Whitmarsh, D. (1991). Computer spreadsheets and the appraisal of fisheries development projects: Introductory exercises for education and training. Project Appraisal, 6(3), pp. 159-168. doi:10.1080/02688867.1991.9726813

Garrod, Brian, B. Garrod, and D. Whitmarsh. "Computer Spreadsheets and the Appraisal of Fisheries Development Projects: Introductory Exercises for Education and Training." Project Appraisal 6, no. 3 (1991): 159-168.

Garrod, Brian, B. Garrod, and D. Whitmarsh. "Computer Spreadsheets and the Appraisal of Fisheries Development Projects: Introductory Exercises for Education and Training." Project Appraisal 6.3 (1991): 159-168.