Cita APA (7a ed.)

Simon, J., Echarri, R., & G.H, K. Recognition of similar shapes.

Cita Chicago Style (17a ed.)

Simon, J.M, R.M Echarri, y Kaufmann G.H. Recognition of Similar Shapes.

Cita MLA (8a ed.)

Simon, J.M, et al. Recognition of Similar Shapes.