APA   Click to copy
Panchanathan, K., & Smith, E. A. Evolutionary Pathways to Group Cooperation: Reputation, Reciprocity, and Signaling.

Chicago/Turabian   Click to copy
Panchanathan, Karthik, and Eric Alden Smith. “Evolutionary Pathways to Group Cooperation: Reputation, Reciprocity, and Signaling” (n.d.).

MLA   Click to copy
Panchanathan, Karthik, and Eric Alden Smith. Evolutionary Pathways to Group Cooperation: Reputation, Reciprocity, and Signaling.

@article{karthik-a,
  title = {Evolutionary Pathways to Group Cooperation: Reputation, Reciprocity, and Signaling},
  author = {Panchanathan, Karthik and Smith, Eric Alden}
}