Proceedings - Delft : ITC-UNESCO Centre, 1967-68 - pág. varía : ilus.

16 folletos numerados S.15 a S.28, agrupados en una caja

Contenido: S15 The pampa problem and its solution.- S16 The landscape concept and its use in the study of grassland territories.- S17 Grass land surveys and grassland production problems of cattle in grazing areas.- S20 Integrated surveys of pastoral ar

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Pastoreo--Congresos.

636.0842 / I5 1967