Beck, H. F. (1970). The age of technology. Concordia Pub. House.
Citación estilo ChicagoBeck, Hubert F. The Age of Technology. St. Louis: Concordia Pub. House, 1970.
Cita MLABeck, Hubert F. The Age of Technology. Concordia Pub. House, 1970.
Warning: These citations may not always be 100% accurate.