APA (7th ed.) Citation

Gairno, R. T. (1970). Social usage and protocol (2nd ed.). s.n.

Chicago Style (17th ed.) Citation

Gairno, Roman T. Social Usage and Protocol. 2nd ed. [Makati, Rizal: s.n, 1970.

MLA (9th ed.) Citation

Gairno, Roman T. Social Usage and Protocol. 2nd ed. s.n, 1970.