Larry Niven.
New York : Ballantine Books, 1970.
342 p. ; 18 cm.
Annotations:
"A Del Rey book."
Best Books:
Senior High Core Collection, Seventeenth Edition, 2007 ; The H. W. Wilson Co.; United States Senior High School Library Catalog, Fifteenth Edition, 1997 ; H.W. Wilson; United States Senior High School Library Catalog, Sixteenth Edition, 2002 ; H.W. Wilson; United States
Reading Measurement Programs:
Lexile, MetaMetrics, Inc. Lexile Measure 680
Reading Counts-Scholastic Interest Level High School Reading Level 9 Title Point Value 16 Lexile Measure 680