APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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

Let op: Deze citaties zijn niet altijd 100% accuraat.