Roger G. Barry & Richard J. Chorley
Routedge, 1992
書

Frederick K. Lutgens, Edward J. Tarbuck
7th ed.. Prentice-Hall, Inc., 1998
書

by Gail Herman ; illustrated by Larry Schwinger
Grosset & Dunlap, 1997
書

by Paul Reeder & Tracey Reeder
Lands End Publishing, 1999
書

by Rick Leslie
Steck-Vaughn, 1998
書

Miriam Busch Goin
National Geographic, 2009
書

[written by Christiane Dorion ; illustrated by Beverley Young]
Templar, 2011
書

created by Basher ; written by Dan Green ; illustrated by Simon Basher
Kingfisher, 2012
書