Shrader, J., & Swicord, C. L. (1999). Primary 4 5 6 vocabulary builder. Preston.
Chicago Style (17th ed.) CitationShrader, Joanne, and Constance Lim Swicord. Primary 4 5 6 Vocabulary Builder. Singapore: Preston, 1999.
MLA (9th ed.) CitationShrader, Joanne, and Constance Lim Swicord. Primary 4 5 6 Vocabulary Builder. Preston, 1999.
Warning: These citations may not always be 100% accurate.