APA

s.a, . (2012). Some animal Words. La Paz-BO: Grupo Express Press.

Chicago

s.a, . 2012. Some animal Words. La Paz-BO: Grupo Express Press.

Harvard

s.a, . (2012). Some animal Words. La Paz-BO: Grupo Express Press.

MLA

s.a, . Some animal Words. La Paz-BO: Grupo Express Press. 2012.