Progress Report
Código CCN: 058508-4
| ISSN (Online): 0097-4013 | 
| Stato: Não informado | 
| Editore: Pennsylvania State University, Agricultural Experiment Station | 
| Imprenta: 
        
                    
                          University Park, Pa.:
                                          Pennsylvania State University, Agricultural Experiment Station,
                          
                          2020 | 
| Área de numeração: No. 109 (Oct. 1953)- |