Osborne, Mary Pope. <br/><br/>
Dinosaurs before dark / 
by Mary Pope Osborne; illustrated by Sal Murdocca. 
 - New York, NY :  Random House,  1992. 
 - p.  cm. 
 - Magic Tree House; #1 .
<br/><br/> Summary: Eight-year-old Jack and his seven-year-old sister, Annie find a magic tree house, which whisks them back to an ancient time zone where they see live dinosaurs. 
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<br/><br/><label>ISBN: </label>0-679-92411-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Time travel--Fiction<br/>Adventure and adventures--Fiction<br/>Tree houses--Fiction<br/>Time travel--Fiction