APA (7th ed.) Citation

Gierens, K., Sausen, R., & Schumann, U. (1999). A Diagnostic Study of the Global Distribution of Contrails, Part II: Future Air Traffic Scenarios. Theoretical and Applied Climatology, 63(1-2), 1.

Chicago Style (17th ed.) Citation

Gierens, K., R. Sausen, and U. Schumann. "A Diagnostic Study of the Global Distribution of Contrails, Part II: Future Air Traffic Scenarios." Theoretical and Applied Climatology 63, no. 1-2 (1999): 1.

MLA (9th ed.) Citation

Gierens, K., et al. "A Diagnostic Study of the Global Distribution of Contrails, Part II: Future Air Traffic Scenarios." Theoretical and Applied Climatology, vol. 63, no. 1-2, 1999, p. 1.