1
Serial
2
Journal
3
Journal
4
Published 1974
Journal
5
Journal
6
by Pla, Alberto J.
Published 1973
Book
7
by Pla, Alberto J.
Published 1973
Book
8
by Duval, Natalia.
Published 1974
Book
9
by Duval, Natalia.
Published 1974
Book
10
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Serial
11
Journal