The Guinness encyclopedia

Manylion Llyfryddiaeth
Awduron Eraill:	Crofton, Ian, Adamson, Stephen
Fformat:	Llyfr
Iaith:	English
Cyhoeddwyd:	Enfield, Middlesex, England Guinness Publishing c1995.
Rhifyn:	2nd ed.
Pynciau:	Encyclopedias and dictionaries. Educational Foundation.