€ 19,00
247 p.; 8 plates. Cloth 25 cm (Bookplate on inside frontcover)
Darmstadt, Wissenschaftliche Buchgesellschaft,1969
aa lenz 1969
Madrid, Consejo Superior de Investigaciones Científicas, 1997.
Paris 1958.
Leipzig, B.G. Teubner, 1961.
Oxford, Clarendon Press, 1971.