Dyfyniad APA

BERGSMA, E. Aerial photo-interpretation for soil erosion and conservation survey part I: Soil erosion features.

Dyfyniad Arddull Chicago

BERGSMA, E. Aerial Photo-interpretation for Soil Erosion and Conservation Survey Part I: Soil Erosion Features.

Dyfyniad MLA

BERGSMA, E. Aerial Photo-interpretation for Soil Erosion and Conservation Survey Part I: Soil Erosion Features.

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