answered:
1.) Fabulous Beasts. Written by Alison Lurie, illustrated by Monika Beisner. 1999.
2.) A Book of Unicorns. Illustration by Melchior Lechter. 1978.
3.) A Book of Unicorns. Illustration by Michael Hague. 1978.
4.) A Book of Unicorns. Illustration by Dorothy Lathrop. 1978.