Hoff Emily 1986 : Scenic science of the national parks : an explorer's guide to wildlife, geology, and botany / Emily Hoff & Maygen Keller ; illustrations by Jillian Barthold.
Hoff Syd : Syd Hoff's Danny and the dinosaur in the big city / by Bruce Hale ; pictures in the style of Syd Hoff by Charles Grosvenor and David A. Cutting.