Παραπομπή σε μορφή APA (7η εκδ.)

Ryan, M., & Wordsworth, S. (2000). Sensitivity of willingness to pay estimates to the level of attributes in discrete choice experiments.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Ryan, M., και S. Wordsworth. Sensitivity of Willingness to Pay Estimates to the Level of Attributes in Discrete Choice Experiments. 2000.

Παραπομπή σε μορφή MLA (9th εκδ.)

Ryan, M., και S. Wordsworth. Sensitivity of Willingness to Pay Estimates to the Level of Attributes in Discrete Choice Experiments. 2000.