APA citiranje

Balmford, A., Gaston, K. J., Blyth, S., James, A., & Kapos, V. (2003). Global variation in terrestrial conservation costs, conservation benefits, and unmet conservation needs. The National Academy of Sciences.

Citação norma Chicago

Balmford, Andrew, Kevin J. Gaston, Simon Blyth, Alex James, and Val Kapos. Global Variation in Terrestrial Conservation Costs, Conservation Benefits, and Unmet Conservation Needs. The National Academy of Sciences, 2003.

MLA citiranje

Balmford, Andrew, et al. Global Variation in Terrestrial Conservation Costs, Conservation Benefits, and Unmet Conservation Needs. The National Academy of Sciences, 2003.