Sandford, C., Godwin, M., Hardwick, P., & Collard, D. (1989). Administrative and compliance costs of taxation. Fiscal Publications.
Lua i Stíl Chicago (17ú heag.)Sandford, Cedric, Michael Godwin, Peter Hardwick, agus David Collard. Administrative and Compliance Costs of Taxation. Great Britain (Fersfield Perrymead): Fiscal Publications, 1989.
Lua MLA (8ú heag.)Sandford, Cedric, et al. Administrative and Compliance Costs of Taxation. Fiscal Publications, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.