APA (7th ed.) Citation

Royal Institute of British Architects. (1998). RIBA International Directory of Practices.

Chicago Style (17th ed.) Citation

Royal Institute of British Architects. RIBA International Directory of Practices. England, London, 1998.

MLA (9th ed.) Citation

Royal Institute of British Architects. RIBA International Directory of Practices. 1998.

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