Gaya APA

WERNER, E, D, ;, F, H, P. (2010). Landslides Causes, Types and Effects ; Natural Disaster Research, Prediction and Mitigation Series . : Nova Science Publishers, Inc.

Gaya MLA

WERNER, Ernest, D., ;, FRIEDMAN,, Hugh, P.. "Landslides Causes, Types and Effects ; Natural Disaster Research, Prediction and Mitigation Series". : Nova Science Publishers, Inc, 2010. Buku.