Columbia subject headings:
Constructivism (Philosophy)
Philosophy and science.
Realism.
Science--Philosophy.
Wallner, Friedrich, 1945-
Harvard subject headings:
Constructivism (Philosophy).
Philosophy and science.
Realism.
Science--Philosophy
Wallner, Friedrich, 1945-
Princeton subject headings:
Constructivism (Philosophy)
Knowledge, Theory of.
Realism.
Science--Philosophy.