APA Citatie

Williams, R. J., Berlow, E. L., Dunne, J. A., Barabási, A., & Martinez, N. D. (2002). Two degrees of separation in complex food webs. The National Academy of Sciences.

Chicago Style citaat

Williams, Richard J., Eric L. Berlow, Jennifer A. Dunne, Albert-László Barabási, en Neo D. Martinez. Two Degrees of Separation in Complex Food Webs. The National Academy of Sciences, 2002.

MLA citatie

Williams, Richard J., et al. Two Degrees of Separation in Complex Food Webs. The National Academy of Sciences, 2002.