Cita APA (7th ed.)

Gruba, L. K. (2016). Guide notes and cases on the general principles of taxation and the organization of the BIR. Published & distributed by Rex Book Store.

Cita Chicago (17th ed.)

Gruba, Lily K. Guide Notes and Cases on the General Principles of Taxation and the Organization of the BIR. Manila: Published & distributed by Rex Book Store, 2016.

Cita MLA (9th ed.)

Gruba, Lily K. Guide Notes and Cases on the General Principles of Taxation and the Organization of the BIR. Published & distributed by Rex Book Store, 2016.