Greenberg, L. M. (2007). The Test of Variables of Attention (Version 7.3) [Computer software]. Langley, WA: The TOVA Company.

Greenberg, L. M. (2011). The Test of Variables of Attention (Version 8.0) [Computer software]. Langley, WA: The TOVA Company.

When referring to content in the T.O.V.A. Clinical or Professional manuals, the works should be cited in this manner:

Leark, R. A., Greenberg, L. K., Kindschi, C. L., Dupuy, T. R., & Hughes, S. J. (2007). Test of Variables of Attention: Professional Manual. Langley, WA: The TOVA Company.

Greenberg, L. K., Kindschi, C. L., Dupuy, T. R., & Holder, C. (2007). Test of Variables of Attention: Clinical Manual. Langley, WA: The TOVA Company.