APA (7th ed.) Citation

Barrass, C. Gregory's city of Sydney ([12th ed.].).

Chicago Style (17th ed.) Citation

Barrass, Clive. Gregory's City of Sydney. [12th ed.].

MLA (9th ed.) Citation

Barrass, Clive. Gregory's City of Sydney. [12th ed.].

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