APA (7th ed.) Citation
Steffen, W., Richardson, K., Rockström, J., Cornell, S., Fetzer, I., Bennett, E. M., . . . Sorlin, S. (2015). Planetary boundaries: Guiding human development on a changing planet. American Association for the Advancement of Science.
Chicago Style (17th ed.) Citation
Steffen, W., et al. Planetary Boundaries: Guiding Human Development on a Changing Planet. American Association for the Advancement of Science, 2015.
MLA (9th ed.) Citation
Steffen, W., et al. Planetary Boundaries: Guiding Human Development on a Changing Planet. American Association for the Advancement of Science, 2015.
Warning: These citations may not always be 100% accurate.