Basic grammar and vocabulary of the international language Ido /
International Language (Ido) Society of Great Britain.
Leek, Staffs. : International Language (Ido) Society of Great Britain,
1993.
"A concise guide to this practical international language which has been developed by linguists and scientists and is available for use by all who wish to communicate across language barriers in the easiest and most economical way possible".
Includes bibliographical references