Gaya APA

Persen, , L, N. (1975). Rock Dynamics and Geophysical Exploration: Introduction to Stress Waves in Rocks . : Elsevier Scientific Publishing Co..

Gaya MLA

Persen, , Leif, N.. "Rock Dynamics and Geophysical Exploration: Introduction to Stress Waves in Rocks". : Elsevier Scientific Publishing Co., 1975. Text.