APA (7th ed.) Citation

Butler, K. G. (1994). Early intervention. Aspen Publishers.

Chicago Style (17th ed.) Citation

Butler, Katharine G. Early Intervention. Gaithersburg, Md.: Aspen Publishers, 1994.

MLA (9th ed.) Citation

Butler, Katharine G. Early Intervention. Aspen Publishers, 1994.

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