Leokum, Arkady The big book of tell me why / Arkady Leokum / ill. Howard Bender - New York : Barnes & Noble Books , 1989 , c1965. - 623p. : il. ISBN: 0-88029-317-9 Subjects--Topical Terms: Children's questions and answersQuestions and answers Dewey Class. No.: JUV 030 LEO