Gaya APA
Popper, Karl S. (1968).
The Logic of scientific discovery .
New York:
Harper & row.
Gaya Chicago
Popper, Karl S.
The Logic of scientific discovery.
New York:
Harper & row,
1968.
Text.
Gaya MLA
Popper, Karl S.
The Logic of scientific discovery.
New York:
Harper & row,
1968.
Text.
Gaya Turabian
Popper, Karl S.
The Logic of scientific discovery.
New York:
Harper & row,
1968.
Print.