APA (7th ed.) Citation

Nurnia. (2000). Student's vocabulary size and their lexical richness in composition.

Chicago Style (17th ed.) Citation

Nurnia. Student's Vocabulary Size and Their Lexical Richness in Composition. 2000.

MLA (8th ed.) Citation

Nurnia. Student's Vocabulary Size and Their Lexical Richness in Composition. 2000.

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