Mendoza (Felipe M.) & Associates. Comprehensive technical services. s.n.
Cita Chicago (17th ed.)Mendoza (Felipe M.) & Associates. Comprehensive Technical Services. [Quezon City: s.n.
Cita MLA (9th ed.)Mendoza (Felipe M.) & Associates. Comprehensive Technical Services. s.n.
Atenció: Aquestes cites poden no estar 100% correctes.