APA (7th ed.) Citation

Public Services International. (1966). The P.S.I: Course for the use of organisers of seminars.

Chicago Style (17th ed.) Citation

Public Services International. The P.S.I: Course for the Use of Organisers of Seminars. London, 1966.

MLA (9th ed.) Citation

Public Services International. The P.S.I: Course for the Use of Organisers of Seminars. 1966.

Warning: These citations may not always be 100% accurate.