The Penguin concise Columbia encyclopedia / ed. by Judith S. Levey and Agnes Greenhall ; with the reference staff of Columbia University Press. - Harmondsworth : Penguin Books : in ass. with Longman Publishing Group, 1987. - X, 950 s. : il. ; 24 cm. ISBN: 0140511970 Tematy--Hasło formalne: Encyklopedie i słowniki angielskie.