APA引文

Organisation of Professional Associations of Sri Lanka. (1986). O.P.A. journal: The official publication of the Organization of Professional Associations of Sri Lanka. OPA.

Chicago Style (17th ed.) Citation

Organisation of Professional Associations of Sri Lanka. O.P.A. Journal: The Official Publication of the Organization of Professional Associations of Sri Lanka. [Colombo]: OPA, 1986.

MLA引文

Organisation of Professional Associations of Sri Lanka. O.P.A. Journal: The Official Publication of the Organization of Professional Associations of Sri Lanka. OPA, 1986.