APA (7th ed.) Citation

Smith, M. D., & Locke, J. L. (1988). The Emergent lexicon: The child's development of a linguistic vocabulary. Academic Press.

Chicago Style (17th ed.) Citation

Smith, Michael D., and John L. Locke. The Emergent Lexicon: The Child's Development of a Linguistic Vocabulary. Orlando: Academic Press, 1988.

MLA (9th ed.) Citation

Smith, Michael D., and John L. Locke. The Emergent Lexicon: The Child's Development of a Linguistic Vocabulary. Academic Press, 1988.