Dyfyniad APA

Harry, H. R. D., & Stefanko, R. (1973). New horizons in rock mechanics [proceedings]. American society of Civil Engineers.

Dyfyniad Arddull Chicago

Harry, H Reginald D., and Robert Stefanko. New Horizons in Rock Mechanics [proceedings]. New York: American society of Civil Engineers, 1973.

Dyfyniad MLA

Harry, H Reginald D., and Robert Stefanko. New Horizons in Rock Mechanics [proceedings]. American society of Civil Engineers, 1973.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.