Cita APA

Crowther, J. G. (1966). Discoveries and inventions of the 20th century. London: Routledge & K. Paul.

Chicago Style Citation

Crowther, J. G. Discoveries and Inventions of the 20th Century. London: Routledge & K. Paul, 1966.

Cita MLA

Crowther, J. G. Discoveries and Inventions of the 20th Century. London: Routledge & K. Paul, 1966.