Style de citation APA (7e éd.)

Richardson, D. (2004). Esperanto: Learning and using the international language (3rd ed.). Esperanto League for North America ; Orcas Publ..

Style de citation Chicago (17e éd.)

Richardson, David. Esperanto: Learning and Using the International Language. 3rd ed. El Cerrito, CA : Eastsound, Wash.: Esperanto League for North America ; Orcas Publ., 2004.

Style de citation MLA (8e éd.)

Richardson, David. Esperanto: Learning and Using the International Language. 3rd ed. Esperanto League for North America ; Orcas Publ., 2004.

Attention : ces citations peuvent ne pas être correctes à 100%.