APA (7e ed.) Bronvermelding

Não informado. Techniques of Water Resources Investigations of the United States Geological Survey.

Chicago (17e ed.) Bronvermelding

Não informado. Techniques of Water Resources Investigations of the United States Geological Survey.

MLA (8e ed.) Bronvermelding

Não informado. Techniques of Water Resources Investigations of the United States Geological Survey.

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