Auld, W. 1., & Auld, W. 1. (1988). La fenomeno Esperanto. Rotterdam: Universal Esperanto Association.
Chicago Style CitationAuld, William 1924-, and William 1924- Auld. La Fenomeno Esperanto. Rotterdam: Universal Esperanto Association, 1988.
MLA CitationAuld, William 1924-, and William 1924- Auld. La Fenomeno Esperanto. Rotterdam: Universal Esperanto Association, 1988.
Warning: These citations may not always be 100% accurate.