Inside our earth /

• 作者：by Boris Arnov, Jr. and Helen Mather-Smith Mindlin ; Illustrated and designed by Charles Mather-Smith.
• 出版者：Bobbs-Merrill
• 出版地：Indianapolis :
• 語文：英語
• 作者：Arnov, Boris.;Mindlin, Helen Mather-Smith
• 索書號：551