Cita APA (7th ed.)

Punzalan, C. N. (1981). Fundamentals of business mathematics (1981 ed.). s.n.].

Cita Chicago (17th ed.)

Punzalan, Celestina Narag. Fundamentals of Business Mathematics. 1981 ed. [S.l: s.n.], 1981.

Cita MLA (9th ed.)

Punzalan, Celestina Narag. Fundamentals of Business Mathematics. 1981 ed. s.n.], 1981.