Cita APA (7th ed.)

Tullis, M. A., & Polkinghorn, P. K. (1992). Valuation of life insurance liabilities (2a. ed.). ACTEX Publications.

Cita Chicago (17th ed.)

Tullis, Mark A., i Philip K. Polkinghorn. Valuation of Life Insurance Liabilities. 2a. ed. Winchester: ACTEX Publications, 1992.

Cita MLA (9th ed.)

Tullis, Mark A., i Philip K. Polkinghorn. Valuation of Life Insurance Liabilities. 2a. ed. ACTEX Publications, 1992.