APA (7th ed.) Citation

Jones, R. M. (1970). System in child language / by R.M. Jones. University of Wales.

Chicago Style (17th ed.) Citation

Jones, R. M. System in Child Language / by R.M. Jones. University of Wales, 1970.

MLA (9th ed.) Citation

Jones, R. M. System in Child Language / by R.M. Jones. University of Wales, 1970.

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