Cita APA

Engelschall, K. I. J., Barr, W., & Gold, D. (1980). A specification for bus maintenance manuals. Springfield Va.: National Technical Information Service U S, Departamento of Commerce.

Citación estilo Chicago

Engelschall, K. I. J., W. Barr, y D. Gold. A Specification for Bus Maintenance Manuals. Springfield Va.: National Technical Information Service U S, Departamento of Commerce, 1980.

Cita MLA

Engelschall, K. I. J., W. Barr, y D. Gold. A Specification for Bus Maintenance Manuals. Springfield Va.: National Technical Information Service U S, Departamento of Commerce, 1980.