APA (7th ed.) Citation

Helmberger, D. V., Harkrider, D. G., & LAB, C. I. O. T. P. S. (1992). Modeling Regional Seismic Waves.

Chicago Style (17th ed.) Citation

Helmberger, Donald V., David G. Harkrider, and CALIFORNIA INST OF TECH PASADENA SEISMOLOGICAL LAB. Modeling Regional Seismic Waves. 1992.

MLA (9th ed.) Citation

Helmberger, Donald V., et al. Modeling Regional Seismic Waves. 1992.