APA (7th ed.) Citation

Schumann, U., & Graf, K. (2012). On the life time of contrail cirrus.

Chicago Style (17th ed.) Citation

Schumann, Ulrich, and Kaspar Graf. On the Life Time of Contrail Cirrus. 2012.

MLA (9th ed.) Citation

Schumann, Ulrich, and Kaspar Graf. On the Life Time of Contrail Cirrus. 2012.

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