APA (7e ed.) Bronvermelding

Gavino, R. T. (1973). Social usage and protocol (4th ed.). s.n.].

Chicago (17e ed.) Bronvermelding

Gavino, Roman T. Social Usage and Protocol. 4th ed. [Makati, Rizal: s.n.], 1973.

MLA (9e ed.) Bronvermelding

Gavino, Roman T. Social Usage and Protocol. 4th ed. s.n.], 1973.