[1]
Christiansen., S. 1962. R. Gaul, D. Ketchum, J. Shaw and J. Snodgrass (editors): Marine Sciences Instrumentation, vol. I. Plenum Press, New York 1962. 354 pp. Illustreret. 22 X 28 cm. 14 $. Geografisk Tidsskrift. 61, (jan. 1962).