Publicado por Akademische Verlagsgesellschaft M. B. H., 1960
Librería: Eryops Books, Stephenville, TX, Estados Unidos de America
Soft cover. Condición: Very Good. ORIGINAL Reprint/Offprint/Sonderdruck of journal article; in English, with German Abstract; softcovers; ex-library; small creases at corners of wraps and leaves, o/w in very good condition. Journal.