(1973). Government revenue by province for the fiscal year ending June 30,1978 (Rev. 1973.). [s.n.].
Cita Chicago (17th ed.)Government Revenue by Province for the Fiscal Year Ending June 30,1978. Rev. 1973. [Manila]: [s.n.], 1973.
Cita MLA (9th ed.)Government Revenue by Province for the Fiscal Year Ending June 30,1978. Rev. 1973. [s.n.], 1973.
Atenció: Aquestes cites poden no estar 100% correctes.