COSPAR, 1989-1990
by Volker W. J. H. Kirchhoff, Instituto de Pesquisas Espaciais (Brazil), COSPAR
Space sciencesResearch
Writing a summary for young readers…
For young readers
Book data: Open Library
by Volker W. J. H. Kirchhoff, Instituto de Pesquisas Espaciais (Brazil), COSPAR
Book data: Open Library