Conservation of natural resources.
By: Issued by the superintendent of public instruction.
Publisher: California state printing office
Published: 1913
Place of publication: [Sacramento]
Language: eng
Number of pages: 111
Subjects: Natural resources.; California -- Economic conditions.
Notes: At head of title: Second edition.
1st ed., 1909.
Includes extracts from letters, addresses, newspaper and magazine articles, etc., etc.