APA (7th ed.) Citation

Vallins, G. H. (1954). Perfect your English: How to speak and write correctly. Ward, Lock.

Chicago Style (17th ed.) Citation

Vallins, G. H. Perfect Your English: How to Speak and Write Correctly. London: Ward, Lock, 1954.

MLA (9th ed.) Citation

Vallins, G. H. Perfect Your English: How to Speak and Write Correctly. Ward, Lock, 1954.

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