APA (7th ed.) Citation

Pennsylvania State University. Rock Mechanics Laboratory, Conference on Acoustic Emission/Microseismic Activity in Geologic Structures and Materials (4th : 1985 : Pennsylvania State University, Pennslyvania), & Hardy, H. R. (1989). Acoustic emission/microseismic activity in geologic structures and materials: Proceedings of the fourth conference. Trans Tech Publications.

Chicago Style (17th ed.) Citation

Pennsylvania State University. Rock Mechanics Laboratory, Pennslyvania) Conference on Acoustic Emission/Microseismic Activity in Geologic Structures and Materials (4th : 1985 : Pennsylvania State University, and H. Reginald Hardy. Acoustic Emission/microseismic Activity in Geologic Structures and Materials: Proceedings of the Fourth Conference. Clausthal-Zellerfeld, Germany: Trans Tech Publications, 1989.

MLA (9th ed.) Citation

Pennsylvania State University. Rock Mechanics Laboratory, et al. Acoustic Emission/microseismic Activity in Geologic Structures and Materials: Proceedings of the Fourth Conference. Trans Tech Publications, 1989.