The 1989 World Book Year Book. Chicago etc.: World Book, 1989 576 p. : ill. 0-7166-0489-2.
The 1989 World Book Year Book. Chicago etc.: World Book, 1989 576 p. : ill. 0-7166-0489-2.
(1989) The 1989 World Book Year Book, Chicago etc.: World Book 576 p. : ill. 0-7166-0489-2.
(1989). The 1989 World Book Year Book. The Annual Supplement to The World Book Encyclopedia : A Review of the Events of 1988. Chicago etc.: World Book, 576 p. : ill.
The 1989 World Book Year Book: The Annual Supplement to The World Book Encyclopedia : A Review of the Events of 1988. Chicago etc.: World Book; 1989. p. 576 p. : ill. ISBN: 0-7166-0489-2.