Gaya APA

Owens, R, E., Farmsworth, K. (1996). Language Development An Introduction (Fourth -). United States of America: Allyn & Bacon A Simon & Shuster Company.

Gaya MLA

Owens, Robert, E., Farmsworth, Kris. "Language Development An Introduction". Fourth - United States of America: Allyn & Bacon A Simon & Shuster Company, 1996. Text.