APA (7th ed.) Citation

Jensen, W. G. (1968). The importance of energy in the First and Second World Wars.

Chicago Style (17th ed.) Citation

Jensen, W. G. The Importance of Energy in the First and Second World Wars. 1968.

MLA (9th ed.) Citation

Jensen, W. G. The Importance of Energy in the First and Second World Wars. 1968.

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