Descripción
Publicado:-nr. 19.
Began publication in 1959.
descrición da copia:Some issues consist of reprints of publications, reports of model tests completed, or articles published in a given year.
Description based on: Nr. 2; title from cover.
Descrición Física:19 v. : ill. ; 24-30 cm.
Frecuencia de Publicación:Irregular
ISSN:0373-935X