Cita APA (7a ed.)
Jella Pfeiffer. Interactive Decision Aids in E-Commerce. Physica.
Cita estilo Chicago (17a ed.)
Jella Pfeiffer. Interactive Decision Aids in E-Commerce. Heidelberg, Alemania: Physica.
Cita MLA (9a ed.)
Jella Pfeiffer. Interactive Decision Aids in E-Commerce. Physica.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.