APA (7th ed.) Citation

Selena Wee. (2004). Improve your english though vocabulary: Practice. SystemPublishing House Pte Lte.

Chicago Style (17th ed.) Citation

Selena Wee. Improve Your English Though Vocabulary: Practice. Singapore: SystemPublishing House Pte Lte, 2004.

MLA (9th ed.) Citation

Selena Wee. Improve Your English Though Vocabulary: Practice. SystemPublishing House Pte Lte, 2004.

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