Mineral resources of the country as related to farm lands
By: Letter from the Secretary of agriculture transmitting in response to senate resolution no.377 (71 st Cong.) a report pertaining to the mineral resources of the country as related to farm lands
Series: (72d Congress, 1st session. Senate -- Document no.93)
Published: 1932
Place of publication: [S.l.]
Language: eng
Number of pages: 32
Subjects: Geography