Humus : origin, chemical composition, and importance in nature /
| Main Author: | |
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| Format: | Book |
| Language: | English |
| Published: |
Baltimore :
The Williams & Wilkins company,
1938.
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| Edition: | 2d. rev. ed. |
| Subjects: |
| Item Description: | "First edition, January, 1936; second edition, July, 1938." |
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| Physical Description: | xiv, 526 pages : illustrations, diagrams ; 24 cm. |
| Bibliography: | Bibliography: pages 430-511. |