Παραπομπή σε μορφή APA (7η εκδ.)

Rixen, C. (2002). Artificial snow and snow additives on ski pistes: Interactions between snow cover, soil and vegetation. Universität Zürich.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Rixen, Christian. Artificial Snow and Snow Additives on Ski Pistes: Interactions Between Snow Cover, Soil and Vegetation. Switzerland: Universität Zürich, 2002.

Παραπομπή σε μορφή MLA (8th εκδ.)

Rixen, Christian. Artificial Snow and Snow Additives on Ski Pistes: Interactions Between Snow Cover, Soil and Vegetation. Universität Zürich, 2002.