Sylvia J. Czerkas
Sylvia J. Czerkas has written at least 2 books. Their most popular book is Dinosaurs Past and Present with 1 save with an average rating of 4⭐.
Dinosaurs Past and Present
BySylvia J. Czerkas(editor),Everett C. Olson(Editor)
1987 • 1 Reader • 164 pages • 4
Dinosaurs: A Global View
BySylvia J. Czerkas
1991 • 1 Reader • 247 pages • 4