How is it done?.

Sonraí bibleagrafaíochta
Údar corparáideach:	Reader's Digest Association
Formáid:	LEABHAR
Teanga:	English
Foilsithe / Cruthaithe:	London Reader's Digest c1990, 1992 reprint.
Ábhair:	Handbooks, vade-mecums, etc.