Saffer, D. (2010) Designing for interaction : creating innovative applications and devices [book]. 2. ed., Voices that matter. 2. ed. Berkeley, CA.: New Riders.

Saffer, Dan. Designing for interaction : creating innovative applications and devices. Book. Voices that matter. 2. ed. Berkeley, CA.: New Riders, [2010?], Berkeley, CA.: New Riders, [2010?].

Saffer, D. (ca. 2010). Designing for interaction : creating innovative applications and devices [Book]. In Voices that matter (2. ed.). New Riders.

Saffer, D. „Designing for interaction : creating innovative applications and devices“. Voices that matter, 2. ed., book, New Riders, 2010.

SAFFER, Dan, 2010. Designing for interaction : creating innovative applications and devices. 2. ed. Berkeley, CA.: New Riders. ISBN 0321643399