APA (7th ed.) Citation

Watts, A. F. (1944). The language and mental development of children: An essay in educational psychology. G. G. Harrap.

Chicago Style (17th ed.) Citation

Watts, A. F. The Language and Mental Development of Children: An Essay in Educational Psychology. London: G. G. Harrap, 1944.

MLA (9th ed.) Citation

Watts, A. F. The Language and Mental Development of Children: An Essay in Educational Psychology. G. G. Harrap, 1944.

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