The croplands the closing frontier
Highlights our rich natural resources. Shows ways how to preserve the croplands such as the use of organic fertilizers.
| Other Authors: | , |
|---|---|
| Format: | Visual Material |
| Language: | English |
| Published: |
[Quezon City], Makati
Philippine Information Agency, [production company] Felta Book Sales [distributor].
[1990]
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| Subjects: |