Oil shale digest, digested 
Subtitle: turning mountains into billions; an enterprise of vast profit-making possibilities. The monstrous and marvelously rich oil shale beds of southern Ohio are giving up their age-old treasure of liquid wealth through development of oil shale.
Publisher: [The Naegele-Auer printing co.]
Published: 1924
Place of publication: Middletown, Ohio
Language: eng
Number of pages: 27
Subjects: Oil-shales.