APA (7th ed.) Citation

Kirtley, C., & Birkett, G. (1999). My very first oxford dictionary. Oxford.

Chicago Style (17th ed.) Citation

Kirtley, Clare, and Georgie Birkett. My Very First Oxford Dictionary. Oxford, 1999.

MLA (9th ed.) Citation

Kirtley, Clare, and Georgie Birkett. My Very First Oxford Dictionary. Oxford, 1999.

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