World hypotheses :
Pepper, Stephen C.
World hypotheses : a study in evidence / S. C. Pepper - Berkeley : University of California Press, 1970. - 348 p.
0-520-00994-0
Teoría Política
World hypotheses : a study in evidence / S. C. Pepper - Berkeley : University of California Press, 1970. - 348 p.
0-520-00994-0
Teoría Política