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izlaidumi no Donald T. Campbell

Cover for Donald T. Campbell · Social Measurement (Hardcover Book) (2001)
Hardcover Book
Social Measurement
Donald T. Campbell
Cover for Donald T. Campbell · Social Measurement (Paperback Book) (2001)
Paperback Book
Social Measurement
Donald T. Campbell
Cover for Donald T. Campbell · Social Experimentation (Paperback Book) (1999)
Paperback Book
Social Experimentation
Donald T. Campbell