APA (7th ed.) Citation

Brickenkamp, R., & Zillmer, E. A. (1998). The d2 test of attention: Manual (1., U.S. ed.). Hogrefe [u.a.].

Chicago Style (17th ed.) Citation

Brickenkamp, Rolf, and Eric A. Zillmer. The D2 Test of Attention: Manual. 1., U.S. ed. Seattle [u.a.]: Hogrefe [u.a.], 1998.

MLA (9th ed.) Citation

Brickenkamp, Rolf, and Eric A. Zillmer. The D2 Test of Attention: Manual. 1., U.S. ed. Hogrefe [u.a.], 1998.