2 results Refine Results
  1. 1
    by Engels, Friedrich, 1820-1895
    Published 1972
    Subjects
    Book
    Save to List
    Saved in:
    Dialectics of nature /
  2. 2
    by Lange, Oscar Richard, 1904-
    Published 1965
    Subjects
    Book
    Save to List
    Saved in:
    Wholes and parts : a general theory of system behaviour /

Search Tools: