Stivens, Dal, 1911- The incredible egg / Dal Stivens ; illustrared by Bob Hines - New York : Weybright and Talley, 1974 - vii, 373 p. : ill. ; 22 cm. ISBN: 0679400494 LCCN: 73-079961 Subjects--Topical Terms: EvolutionSexual behavior in animalsEggs