Παραπομπή APA

Kyoji Sassa & Sassa, K. (2013). Landslides: Global risk preparedness. Springer.

Παραπομπή Chicago Style

Kyoji Sassa και Kyoji Sassa. Landslides: Global Risk Preparedness. Berlin ; New York: Springer, 2013.

Παραπομπή MLA

Kyoji Sassa και Kyoji Sassa. Landslides: Global Risk Preparedness. Springer, 2013.