APA (7e ed.) Bronvermelding

Não informado. Harvard soil mechanics series. Harvard University.

Chicago (17e ed.) Bronvermelding

Não informado. Harvard Soil Mechanics Series. Cambridge, Mass: Harvard University.

MLA (8e ed.) Bronvermelding

Não informado. Harvard Soil Mechanics Series. Harvard University.

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