APA (7th ed.) Citation

Densing, E. M. (1972). What the B.I.R. requires. s.n.

Chicago Style (17th ed.) Citation

Densing, Epimaco M. What the B.I.R. Requires. [Cebu City: s.n, 1972.

MLA (9th ed.) Citation

Densing, Epimaco M. What the B.I.R. Requires. s.n, 1972.