APA
Challoner J., Macdonald F. & Parker S. (1999). The Illustrated Encyclopedia. England: Parragon.
Chicago
Challoner Jack, Macdonald Fiona and Parker Steve. 1999. The Illustrated Encyclopedia. England: Parragon.
Harvard
Challoner J., Macdonald F. and Parker S. (1999). The Illustrated Encyclopedia. England: Parragon.
MLA
Challoner Jack, Macdonald Fiona and Parker Steve. The Illustrated Encyclopedia. England: Parragon. 1999.