Van Verre Velden: De Loopbaan Van Een Luchtvaart-Publiciste.
Hardcover, Hoorn, The Netherlands: U. M. "West-Friesland" 1951. Good in Good dust jacket.
Hardcover, Hoorn, The Netherlands: U. M. "West-Friesland" 1951. Good in Good dust jacket.
Hardcover, Toronto: Weller Publishing Company, 1973. Very Good with no dust jacket.
Softcover, London: Nase Delo, 1973. Good with No dust jacket as issued.
Illustrated by Lia Popescu. Softcover, Timisoara, Romania: Editura Eurostampa, 2004. Very Good with no dust jacket.
Illustrated by Nicholas Parry. Hardcover, Market Drayton, England: Tern Press, 1977. Numbered. Very Good with no dust jacket.
Ephemera, Paris: Imprimerie Nationale, 1903. Good with No dust jacket as issued.
Hardcover, Chico, California: Adyar Library and Research Centre, 1973. Second Edition. Very Good with no dust jacket.
Hardcover, Sweden: Eesti Kirjanike Kooperatiiv, 1961. Very Good in Good dust jacket.
Softcover, Rio de Janeiro: H. Rolim de Freitas, 1996. Very Good with no dust jacket.
Hardcover, Palo Alto, California: North American Association for Celtic Language Teachers, 2007. Very Good with No dust jacket as issued.
Softcover, Czech Republic: Arta Music, 1995. Very Good with No dust jacket as issued.
Softcover, Helsingfors: Holger Schildts Förlag, 1949. Good with no dust jacket.
Softcover, Madras: Sri Ramakrishna Math, 1974. Good with no dust jacket.
Hard Cover, New York: Undzer Veg, 1948. Good with no dust jacket.
Soft Cover, Baltimore, MD: Linguistic Society of America, 1952. Good with no dust jacket.
Hardcover, Budapest: Felelós Kiadó: Az Eötvös Loránd Tudományegyetem Rektora, 1972. Very Good in Very Good dust jacket.
Softcover, Bratislava: Slovart Ltd. Foreign Trade Company, 1974. Good with no dust jacket.
Hardcover, New York: Charles Scribner's Sons, 1921. Good with no dust jacket.
Hardcover, New York: Charles Scribner's Sons, 1922. Good with no dust jacket.
Ephemera, Tallinn, Estonia: Kirjastus "Eesti Raamat" 1969. Good with no dust jacket.
Softcover, Udin: Societat Filologjche Furlane, 1989. Good with no dust jacket.
Hardcover, Budapest: Akadémiai Kiadó, 1961. Very Good with no dust jacket.
Hardcover, Budapest: Magvetö Kiadó, 1980. First Hungarian Edition. Very Good in Very Good dust jacket.
Hardcover, Delhi: Motilal Banarsidass, 1977. Second Edition; Revised and enlarged. Very Good in Good dust jacket.
Illustrated by Zdenek Sklenár. Hard Cover, Praha: Státní Nakladatelství, 1964. Good in Good dust jacket.