tudomany/scientific american 1989 april
DESCRIPTION
Tudomany/Scientific American 1989 april: cikk a szovjet/sowiet urhajozasrol / space industryTRANSCRIPT
DESCRIPTION
Tudomany/Scientific American 1989 april: cikk a szovjet/sowiet urhajozasrol / space industryTRANSCRIPT