APA (7th ed.) Citation

Acklan, R. (1989). Thisk first certificate. Longman Group UK limited.

Chicago Style (17th ed.) Citation

Acklan, Richard. Thisk First Certificate. London: Longman Group UK limited, 1989.

MLA (9th ed.) Citation

Acklan, Richard. Thisk First Certificate. Longman Group UK limited, 1989.

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