APA (7th ed.) Citation

Bedford, B. L. (1975). Challenge underground. G. Allen & Unwin.

Chicago Style (17th ed.) Citation

Bedford, Bruce L. Challenge Underground. London: G. Allen & Unwin, 1975.

MLA (9th ed.) Citation

Bedford, Bruce L. Challenge Underground. G. Allen & Unwin, 1975.

Warning: These citations may not always be 100% accurate.