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Multilingual
1
Piotrowski, John, 621.823-P662s | Marcel Dekker | 1995 621.823-P662s,
2
3
Hoffman, Piotr, 101-H711d | The University of Chicago press | 1986 101-H711d,
4
Piotrowski, Zygmunt A., 181.383-P662d | Lawrence Erlbaum Associates Publishers | 1986 181.383-P662d,