APA (7th ed.) Citation

Shrader, J., & Swicord, C. L. (1999). Primary 4 5 6 vocabulary builder. Preston.

Chicago Style (17th ed.) Citation

Shrader, Joanne, and Constance Lim Swicord. Primary 4 5 6 Vocabulary Builder. Singapore: Preston, 1999.

MLA (9th ed.) Citation

Shrader, Joanne, and Constance Lim Swicord. Primary 4 5 6 Vocabulary Builder. Preston, 1999.