Challenge to biologists in the 70's the escalation of food production
| Hlavní autor: | |
|---|---|
| Médium: | Kniha | 
| Jazyk: | English | 
| Vydáno: | [Quezon City
          National Research Council of the Philippines
    
        1973.] | 
| Edice: | The Dr. Gregorio T. Velasquez lecture series, 1972-73 | 
| Témata: |