Cita APA (7a ed.)

School of Engineering at Sacramento State College, National Academy of Engineering. Committee on Rapid Excavation, & Symposium on R-D in rapid excavation (1968 oct. 28-29 : Sacramento, California). (1968). Proceedings. Office of Educational Services.

Cita Chicago Style (17a ed.)

School of Engineering at Sacramento State College, National Academy of Engineering. Committee on Rapid Excavation, y California) Symposium on R-D in rapid excavation (1968 oct. 28-29 : Sacramento. Proceedings. California: Office of Educational Services, 1968.

Cita MLA (9a ed.)

School of Engineering at Sacramento State College, et al. Proceedings. Office of Educational Services, 1968.