APA (7th ed.) Citation

Haefele, A., Blumhoff, J., Khnayzer, R. S., & Castellano, F. N. (2012). Getting to the (square) root of the problem.

Chicago Style (17th ed.) Citation

Haefele, Alexandre, Jorg Blumhoff, Rony S. Khnayzer, and Felix N. Castellano. Getting to the (square) Root of the Problem. 2012.

MLA (9th ed.) Citation

Haefele, Alexandre, et al. Getting to the (square) Root of the Problem. 2012.