Cita APA (7th ed.)

Castillo, M. T. (2001). Actuarial theory and practice I: Mathematics 261.1. [s.n.].

Cita Chicago (17th ed.)

Castillo, Maritina T. Actuarial Theory and Practice I: Mathematics 261.1. Diliman, Quezon City: [s.n.], 2001.

Cita MLA (9th ed.)

Castillo, Maritina T. Actuarial Theory and Practice I: Mathematics 261.1. [s.n.], 2001.