APA (7th ed.) Citation

Tak, N. T. D. (2014). Ngo's catalogue of Philippine Republic stamps & postal stationeries 2014. [name of publisher not identified].

Chicago Style (17th ed.) Citation

Tak, Ngo Tiong Dr. Ngo's Catalogue of Philippine Republic Stamps & Postal Stationeries 2014. [place of publication not identified]: [name of publisher not identified], 2014.

MLA (9th ed.) Citation

Tak, Ngo Tiong Dr. Ngo's Catalogue of Philippine Republic Stamps & Postal Stationeries 2014. [name of publisher not identified], 2014.