Leonhard, D. L. (1955). Consumer research with projective techniques: A case report of theory and successful experimentations in market and marketing research. Ajax Corp.
Chicago-Zitierstil (17. Ausg.)Leonhard, Dietz L. Consumer Research with Projective Techniques: A Case Report of Theory and Successful Experimentations in Market and Marketing Research. Shenandoah,Iowa: Ajax Corp, 1955.
MLA-Zitierstil (9. Ausg.)Leonhard, Dietz L. Consumer Research with Projective Techniques: A Case Report of Theory and Successful Experimentations in Market and Marketing Research. Ajax Corp, 1955.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.