El Corno #13 featured a large anthology of contemporary poetry from Argentina. Among the 47 Argentine poets represented were: Alejandra Pizarnik, Francisco Madariaga, Alberto Girri, Basilia Papastamatiu, Alejandro Vignati, Miguel Grinberg, Marina Taborski, LeandroKatz, Edgar Bayley, Rodolfo Alonso, Ariel Canzani, Roberto Juarroz, Luisa Futoransky, Mario Waserman, Raquel Silva, and H. A. Murena.
The issue also included work by four Canadian poets: John Newlove, Lionel Kearns, George Bowering, and James Reid. And there were poems by Ernesto Cardenal, Sergio Mondragon, Margaret Randall, Robert Kelly, Larry Eigner, Jack Hirschman, and Daisy Aldan.
Among the visual artists were: Betelu, Guillermon, and Pedro Alcantara.